21554390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{15073}}^1$

素因数の和:15104

約数の個数: 32

約数和(自身を含む): 45583776

約数和(自身を除く): 24029386

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 15073, 30146, 75365, 150730, 165803, 195949, 331606, 391898, 829015, 979745, 1658030, 1959490, 2155439, 4310878, 10777195, 21554390]

約数ペア:

[(1, 21554390), (2, 10777195), (5, 4310878), (10, 2155439), (11, 1959490), (13, 1658030), (22, 979745), (26, 829015), (55, 391898), (65, 331606), (110, 195949), (130, 165803), (143, 150730), (286, 75365), (715, 30146), (1430, 15073)]