19904924

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{1423}}^1$

素因数の和:1709

約数の個数: 24

約数和(自身を含む): 37679040

約数和(自身を除く): 17774116

約数列:

[1, 2, 4, 13, 26, 52, 269, 538, 1076, 1423, 2846, 3497, 5692, 6994, 13988, 18499, 36998, 73996, 382787, 765574, 1531148, 4976231, 9952462, 19904924]

約数ペア:

[(1, 19904924), (2, 9952462), (4, 4976231), (13, 1531148), (26, 765574), (52, 382787), (269, 73996), (538, 36998), (1076, 18499), (1423, 13988), (2846, 6994), (3497, 5692)]