21207152

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28201}}^1$

素因数の和:28256

約数の個数: 20

約数和(自身を含む): 41964576

約数和(自身を除く): 20757424

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28201, 56402, 112804, 225608, 451216, 1325447, 2650894, 5301788, 10603576, 21207152]

約数ペア:

[(1, 21207152), (2, 10603576), (4, 5301788), (8, 2650894), (16, 1325447), (47, 451216), (94, 225608), (188, 112804), (376, 56402), (752, 28201)]