21915264

素因数分解:

$2^7\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:318

約数の個数: 128

約数和(自身を含む): 68935680

約数和(自身を除く): 47020416

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 31, 32, 42, 48, 56, 62, 64, 84, 93, 96, 112, 124, 128, 168, 186, 192, 217, 224, 248, 263, 336, 372, 384, 434, 448, 496, 526, 651, 672, 744, 789, 868, 896, 992, 1052, 1302, 1344, 1488, 1578, 1736, 1841, 1984, 2104, 2604, 2688, 2976, 3156, 3472, 3682, 3968, 4208, 5208, 5523, 5952, 6312, 6944, 7364, 8153, 8416, 10416, 11046, 11904, 12624, 13888, 14728, 16306, 16832, 20832, 22092, 24459, 25248, 27776, 29456, 32612, 33664, 41664, 44184, 48918, 50496, 57071, 58912, 65224, 83328, 88368, 97836, 100992, 114142, 117824, 130448, 171213, 176736, 195672, 228284, 235648, 260896, 342426, 353472, 391344, 456568, 521792, 684852, 706944, 782688, 913136, 1043584, 1369704, 1565376, 1826272, 2739408, 3130752, 3652544, 5478816, 7305088, 10957632, 21915264]

約数ペア:

[(1, 21915264), (2, 10957632), (3, 7305088), (4, 5478816), (6, 3652544), (7, 3130752), (8, 2739408), (12, 1826272), (14, 1565376), (16, 1369704), (21, 1043584), (24, 913136), (28, 782688), (31, 706944), (32, 684852), (42, 521792), (48, 456568), (56, 391344), (62, 353472), (64, 342426), (84, 260896), (93, 235648), (96, 228284), (112, 195672), (124, 176736), (128, 171213), (168, 130448), (186, 117824), (192, 114142), (217, 100992), (224, 97836), (248, 88368), (263, 83328), (336, 65224), (372, 58912), (384, 57071), (434, 50496), (448, 48918), (496, 44184), (526, 41664), (651, 33664), (672, 32612), (744, 29456), (789, 27776), (868, 25248), (896, 24459), (992, 22092), (1052, 20832), (1302, 16832), (1344, 16306), (1488, 14728), (1578, 13888), (1736, 12624), (1841, 11904), (1984, 11046), (2104, 10416), (2604, 8416), (2688, 8153), (2976, 7364), (3156, 6944), (3472, 6312), (3682, 5952), (3968, 5523), (4208, 5208)]