21000901296

素因数分解:

$2^4\times 3^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1\times {\mathrm{15511}}^1$

素因数の和:16010

約数の個数: 80

約数和(自身を含む): 55196411648

約数和(自身を除く): 34195510352

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 67, 134, 201, 268, 402, 421, 536, 804, 842, 1072, 1263, 1608, 1684, 2526, 3216, 3368, 5052, 6736, 10104, 15511, 20208, 28207, 31022, 46533, 56414, 62044, 84621, 93066, 112828, 124088, 169242, 186132, 225656, 248176, 338484, 372264, 451312, 676968, 744528, 1039237, 1353936, 2078474, 3117711, 4156948, 6235422, 6530131, 8313896, 12470844, 13060262, 16627792, 19590393, 24941688, 26120524, 39180786, 49883376, 52241048, 78361572, 104482096, 156723144, 313446288, 437518777, 875037554, 1312556331, 1750075108, 2625112662, 3500150216, 5250225324, 7000300432, 10500450648, 21000901296]

約数ペア:

[(1, 21000901296), (2, 10500450648), (3, 7000300432), (4, 5250225324), (6, 3500150216), (8, 2625112662), (12, 1750075108), (16, 1312556331), (24, 875037554), (48, 437518777), (67, 313446288), (134, 156723144), (201, 104482096), (268, 78361572), (402, 52241048), (421, 49883376), (536, 39180786), (804, 26120524), (842, 24941688), (1072, 19590393), (1263, 16627792), (1608, 13060262), (1684, 12470844), (2526, 8313896), (3216, 6530131), (3368, 6235422), (5052, 4156948), (6736, 3117711), (10104, 2078474), (15511, 1353936), (20208, 1039237), (28207, 744528), (31022, 676968), (46533, 451312), (56414, 372264), (62044, 338484), (84621, 248176), (93066, 225656), (112828, 186132), (124088, 169242)]