21412456

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{227}}^1\times {\mathrm{907}}^1$

素因数の和:1153

約数の個数: 32

約数和(自身を含む): 43475040

約数和(自身を除く): 22062584

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 227, 454, 907, 908, 1814, 1816, 2951, 3628, 5902, 7256, 11791, 11804, 23582, 23608, 47164, 94328, 205889, 411778, 823556, 1647112, 2676557, 5353114, 10706228, 21412456]

約数ペア:

[(1, 21412456), (2, 10706228), (4, 5353114), (8, 2676557), (13, 1647112), (26, 823556), (52, 411778), (104, 205889), (227, 94328), (454, 47164), (907, 23608), (908, 23582), (1814, 11804), (1816, 11791), (2951, 7256), (3628, 5902)]