21493832

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{163}}^1\times {\mathrm{311}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 41446080

約数和(自身を除く): 19952248

約数列:

[1, 2, 4, 8, 53, 106, 163, 212, 311, 326, 424, 622, 652, 1244, 1304, 2488, 8639, 16483, 17278, 32966, 34556, 50693, 65932, 69112, 101386, 131864, 202772, 405544, 2686729, 5373458, 10746916, 21493832]

約数ペア:

[(1, 21493832), (2, 10746916), (4, 5373458), (8, 2686729), (53, 405544), (106, 202772), (163, 131864), (212, 101386), (311, 69112), (326, 65932), (424, 50693), (622, 34556), (652, 32966), (1244, 17278), (1304, 16483), (2488, 8639)]