19953172

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{2111}}^1$

素因数の和:2271

約数の個数: 24

約数和(自身を含む): 37255680

約数和(自身を除く): 17302508

約数列:

[1, 2, 4, 17, 34, 68, 139, 278, 556, 2111, 2363, 4222, 4726, 8444, 9452, 35887, 71774, 143548, 293429, 586858, 1173716, 4988293, 9976586, 19953172]

約数ペア:

[(1, 19953172), (2, 9976586), (4, 4988293), (17, 1173716), (34, 586858), (68, 293429), (139, 143548), (278, 71774), (556, 35887), (2111, 9452), (2363, 8444), (4222, 4726)]