21382696

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1019}}^1$

素因数の和:1129

約数の個数: 32

約数和(自身を含む): 41738400

約数和(自身を除く): 20355704

約数列:

[1, 2, 4, 8, 43, 61, 86, 122, 172, 244, 344, 488, 1019, 2038, 2623, 4076, 5246, 8152, 10492, 20984, 43817, 62159, 87634, 124318, 175268, 248636, 350536, 497272, 2672837, 5345674, 10691348, 21382696]

約数ペア:

[(1, 21382696), (2, 10691348), (4, 5345674), (8, 2672837), (43, 497272), (61, 350536), (86, 248636), (122, 175268), (172, 124318), (244, 87634), (344, 62159), (488, 43817), (1019, 20984), (2038, 10492), (2623, 8152), (4076, 5246)]