21501906

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{210803}}^1$

素因数の和:210825

約数の個数: 16

約数和(自身を含む): 45533664

約数和(自身を除く): 24031758

約数列:

[1, 2, 3, 6, 17, 34, 51, 102, 210803, 421606, 632409, 1264818, 3583651, 7167302, 10750953, 21501906]

約数ペア:

[(1, 21501906), (2, 10750953), (3, 7167302), (6, 3583651), (17, 1264818), (34, 632409), (51, 421606), (102, 210803)]