21645310

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{739}}^1$

素因数の和:876

約数の個数: 32

約数和(自身を含む): 40759200

約数和(自身を除く): 19113890

約数列:

[1, 2, 5, 10, 29, 58, 101, 145, 202, 290, 505, 739, 1010, 1478, 2929, 3695, 5858, 7390, 14645, 21431, 29290, 42862, 74639, 107155, 149278, 214310, 373195, 746390, 2164531, 4329062, 10822655, 21645310]

約数ペア:

[(1, 21645310), (2, 10822655), (5, 4329062), (10, 2164531), (29, 746390), (58, 373195), (101, 214310), (145, 149278), (202, 107155), (290, 74639), (505, 42862), (739, 29290), (1010, 21431), (1478, 14645), (2929, 7390), (3695, 5858)]