21191522

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{15791}}^1$

素因数の和:15865

約数の個数: 16

約数和(自身を含む): 35247744

約数和(自身を除く): 14056222

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 15791, 31582, 173701, 347402, 963251, 1926502, 10595761, 21191522]

約数ペア:

[(1, 21191522), (2, 10595761), (11, 1926502), (22, 963251), (61, 347402), (122, 173701), (671, 31582), (1342, 15791)]