20913456

素因数分解:

$2^4\times 3^1\times {\mathrm{239}}^1\times {\mathrm{1823}}^1$

素因数の和:2073

約数の個数: 40

約数和(自身を含む): 54282240

約数和(自身を除く): 33368784

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 239, 478, 717, 956, 1434, 1823, 1912, 2868, 3646, 3824, 5469, 5736, 7292, 10938, 11472, 14584, 21876, 29168, 43752, 87504, 435697, 871394, 1307091, 1742788, 2614182, 3485576, 5228364, 6971152, 10456728, 20913456]

約数ペア:

[(1, 20913456), (2, 10456728), (3, 6971152), (4, 5228364), (6, 3485576), (8, 2614182), (12, 1742788), (16, 1307091), (24, 871394), (48, 435697), (239, 87504), (478, 43752), (717, 29168), (956, 21876), (1434, 14584), (1823, 11472), (1912, 10938), (2868, 7292), (3646, 5736), (3824, 5469)]