21619624

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{4423}}^1$

素因数の和:4489

約数の個数: 32

約数和(自身を含む): 44593920

約数和(自身を除く): 22974296

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 94, 104, 188, 376, 611, 1222, 2444, 4423, 4888, 8846, 17692, 35384, 57499, 114998, 207881, 229996, 415762, 459992, 831524, 1663048, 2702453, 5404906, 10809812, 21619624]

約数ペア:

[(1, 21619624), (2, 10809812), (4, 5404906), (8, 2702453), (13, 1663048), (26, 831524), (47, 459992), (52, 415762), (94, 229996), (104, 207881), (188, 114998), (376, 57499), (611, 35384), (1222, 17692), (2444, 8846), (4423, 4888)]