21215697916

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{93187}}^1$

素因数の和:93418

約数の個数: 48

約数和(自身を含む): 43585145856

約数和(自身を除く): 22369447940

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 173, 188, 329, 346, 658, 692, 1211, 1316, 2422, 4844, 8131, 16262, 32524, 56917, 93187, 113834, 186374, 227668, 372748, 652309, 1304618, 2609236, 4379789, 8759578, 16121351, 17519156, 30658523, 32242702, 61317046, 64485404, 112849457, 122634092, 225698914, 451397828, 757703497, 1515406994, 3030813988, 5303924479, 10607848958, 21215697916]

約数ペア:

[(1, 21215697916), (2, 10607848958), (4, 5303924479), (7, 3030813988), (14, 1515406994), (28, 757703497), (47, 451397828), (94, 225698914), (173, 122634092), (188, 112849457), (329, 64485404), (346, 61317046), (658, 32242702), (692, 30658523), (1211, 17519156), (1316, 16121351), (2422, 8759578), (4844, 4379789), (8131, 2609236), (16262, 1304618), (32524, 652309), (56917, 372748), (93187, 227668), (113834, 186374)]