21665456

素因数分解:

$2^4\times {\mathrm{457}}^1\times {\mathrm{2963}}^1$

素因数の和:3428

約数の個数: 20

約数和(自身を含む): 42082872

約数和(自身を除く): 20417416

約数列:

[1, 2, 4, 8, 16, 457, 914, 1828, 2963, 3656, 5926, 7312, 11852, 23704, 47408, 1354091, 2708182, 5416364, 10832728, 21665456]

約数ペア:

[(1, 21665456), (2, 10832728), (4, 5416364), (8, 2708182), (16, 1354091), (457, 47408), (914, 23704), (1828, 11852), (2963, 7312), (3656, 5926)]