21605132

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{223}}^1\times {\mathrm{457}}^1$

素因数の和:737

約数の個数: 24

約数和(自身を含む): 38779776

約数和(自身を除く): 17174644

約数列:

[1, 2, 4, 53, 106, 212, 223, 446, 457, 892, 914, 1828, 11819, 23638, 24221, 47276, 48442, 96884, 101911, 203822, 407644, 5401283, 10802566, 21605132]

約数ペア:

[(1, 21605132), (2, 10802566), (4, 5401283), (53, 407644), (106, 203822), (212, 101911), (223, 96884), (446, 48442), (457, 47276), (892, 24221), (914, 23638), (1828, 11819)]