21058240

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:127

約数の個数: 168

約数和(自身を含む): 62544960

約数和(自身を除く): 41486720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 49, 56, 64, 68, 70, 79, 80, 85, 98, 112, 119, 136, 140, 158, 160, 170, 196, 224, 238, 245, 272, 280, 316, 320, 340, 392, 395, 448, 476, 490, 544, 553, 560, 595, 632, 680, 784, 790, 833, 952, 980, 1088, 1106, 1120, 1190, 1264, 1343, 1360, 1568, 1580, 1666, 1904, 1960, 2212, 2240, 2380, 2528, 2686, 2720, 2765, 3136, 3160, 3332, 3808, 3871, 3920, 4165, 4424, 4760, 5056, 5372, 5440, 5530, 6320, 6664, 6715, 7616, 7742, 7840, 8330, 8848, 9401, 9520, 10744, 11060, 12640, 13328, 13430, 15484, 15680, 16660, 17696, 18802, 19040, 19355, 21488, 22120, 25280, 26656, 26860, 30968, 33320, 35392, 37604, 38080, 38710, 42976, 44240, 47005, 53312, 53720, 61936, 65807, 66640, 75208, 77420, 85952, 88480, 94010, 107440, 123872, 131614, 133280, 150416, 154840, 176960, 188020, 214880, 247744, 263228, 266560, 300832, 309680, 329035, 376040, 429760, 526456, 601664, 619360, 658070, 752080, 1052912, 1238720, 1316140, 1504160, 2105824, 2632280, 3008320, 4211648, 5264560, 10529120, 21058240]

約数ペア:

[(1, 21058240), (2, 10529120), (4, 5264560), (5, 4211648), (7, 3008320), (8, 2632280), (10, 2105824), (14, 1504160), (16, 1316140), (17, 1238720), (20, 1052912), (28, 752080), (32, 658070), (34, 619360), (35, 601664), (40, 526456), (49, 429760), (56, 376040), (64, 329035), (68, 309680), (70, 300832), (79, 266560), (80, 263228), (85, 247744), (98, 214880), (112, 188020), (119, 176960), (136, 154840), (140, 150416), (158, 133280), (160, 131614), (170, 123872), (196, 107440), (224, 94010), (238, 88480), (245, 85952), (272, 77420), (280, 75208), (316, 66640), (320, 65807), (340, 61936), (392, 53720), (395, 53312), (448, 47005), (476, 44240), (490, 42976), (544, 38710), (553, 38080), (560, 37604), (595, 35392), (632, 33320), (680, 30968), (784, 26860), (790, 26656), (833, 25280), (952, 22120), (980, 21488), (1088, 19355), (1106, 19040), (1120, 18802), (1190, 17696), (1264, 16660), (1343, 15680), (1360, 15484), (1568, 13430), (1580, 13328), (1666, 12640), (1904, 11060), (1960, 10744), (2212, 9520), (2240, 9401), (2380, 8848), (2528, 8330), (2686, 7840), (2720, 7742), (2765, 7616), (3136, 6715), (3160, 6664), (3332, 6320), (3808, 5530), (3871, 5440), (3920, 5372), (4165, 5056), (4424, 4760)]