21000331776

素因数分解:

$2^9\times 3^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{1031}}^1$

素因数の和:1290

約数の個数: 160

約数和(自身を含む): 57009744000

約数和(自身を除く): 36009412224

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 89, 96, 128, 149, 178, 192, 256, 267, 298, 356, 384, 447, 512, 534, 596, 712, 768, 894, 1031, 1068, 1192, 1424, 1536, 1788, 2062, 2136, 2384, 2848, 3093, 3576, 4124, 4272, 4768, 5696, 6186, 7152, 8248, 8544, 9536, 11392, 12372, 13261, 14304, 16496, 17088, 19072, 22784, 24744, 26522, 28608, 32992, 34176, 38144, 39783, 45568, 49488, 53044, 57216, 65984, 68352, 76288, 79566, 91759, 98976, 106088, 114432, 131968, 136704, 153619, 159132, 183518, 197952, 212176, 228864, 263936, 275277, 307238, 318264, 367036, 395904, 424352, 460857, 527872, 550554, 614476, 636528, 734072, 791808, 848704, 921714, 1101108, 1228952, 1273056, 1468144, 1583616, 1697408, 1843428, 2202216, 2457904, 2546112, 2936288, 3394816, 3686856, 4404432, 4915808, 5092224, 5872576, 6789632, 7373712, 8808864, 9831616, 10184448, 11745152, 13672091, 14747424, 17617728, 19663232, 20368896, 23490304, 27344182, 29494848, 35235456, 39326464, 41016273, 46980608, 54688364, 58989696, 70470912, 78652928, 82032546, 109376728, 117979392, 140941824, 164065092, 218753456, 235958784, 328130184, 437506912, 656260368, 875013824, 1312520736, 1750027648, 2625041472, 3500055296, 5250082944, 7000110592, 10500165888, 21000331776]

約数ペア:

[(1, 21000331776), (2, 10500165888), (3, 7000110592), (4, 5250082944), (6, 3500055296), (8, 2625041472), (12, 1750027648), (16, 1312520736), (24, 875013824), (32, 656260368), (48, 437506912), (64, 328130184), (89, 235958784), (96, 218753456), (128, 164065092), (149, 140941824), (178, 117979392), (192, 109376728), (256, 82032546), (267, 78652928), (298, 70470912), (356, 58989696), (384, 54688364), (447, 46980608), (512, 41016273), (534, 39326464), (596, 35235456), (712, 29494848), (768, 27344182), (894, 23490304), (1031, 20368896), (1068, 19663232), (1192, 17617728), (1424, 14747424), (1536, 13672091), (1788, 11745152), (2062, 10184448), (2136, 9831616), (2384, 8808864), (2848, 7373712), (3093, 6789632), (3576, 5872576), (4124, 5092224), (4272, 4915808), (4768, 4404432), (5696, 3686856), (6186, 3394816), (7152, 2936288), (8248, 2546112), (8544, 2457904), (9536, 2202216), (11392, 1843428), (12372, 1697408), (13261, 1583616), (14304, 1468144), (16496, 1273056), (17088, 1228952), (19072, 1101108), (22784, 921714), (24744, 848704), (26522, 791808), (28608, 734072), (32992, 636528), (34176, 614476), (38144, 550554), (39783, 527872), (45568, 460857), (49488, 424352), (53044, 395904), (57216, 367036), (65984, 318264), (68352, 307238), (76288, 275277), (79566, 263936), (91759, 228864), (98976, 212176), (106088, 197952), (114432, 183518), (131968, 159132), (136704, 153619)]