21112112

素因数分解:

$2^4\times 7^1\times {\mathrm{251}}^1\times {\mathrm{751}}^1$

素因数の和:1017

約数の個数: 40

約数和(自身を含む): 46996992

約数和(自身を除く): 25884880

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 251, 502, 751, 1004, 1502, 1757, 2008, 3004, 3514, 4016, 5257, 6008, 7028, 10514, 12016, 14056, 21028, 28112, 42056, 84112, 188501, 377002, 754004, 1319507, 1508008, 2639014, 3016016, 5278028, 10556056, 21112112]

約数ペア:

[(1, 21112112), (2, 10556056), (4, 5278028), (7, 3016016), (8, 2639014), (14, 1508008), (16, 1319507), (28, 754004), (56, 377002), (112, 188501), (251, 84112), (502, 42056), (751, 28112), (1004, 21028), (1502, 14056), (1757, 12016), (2008, 10514), (3004, 7028), (3514, 6008), (4016, 5257)]