20921397186

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{672757}}^1$

素因数の和:672906

約数の個数: 32

約数和(自身を含む): 43013455488

約数和(自身を除く): 22092058302

約数列:

[1, 2, 3, 6, 71, 73, 142, 146, 213, 219, 426, 438, 5183, 10366, 15549, 31098, 672757, 1345514, 2018271, 4036542, 47765747, 49111261, 95531494, 98222522, 143297241, 147333783, 286594482, 294667566, 3486899531, 6973799062, 10460698593, 20921397186]

約数ペア:

[(1, 20921397186), (2, 10460698593), (3, 6973799062), (6, 3486899531), (71, 294667566), (73, 286594482), (142, 147333783), (146, 143297241), (213, 98222522), (219, 95531494), (426, 49111261), (438, 47765747), (5183, 4036542), (10366, 2018271), (15549, 1345514), (31098, 672757)]