21347680

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{5801}}^1$

素因数の和:5839

約数の個数: 48

約数和(自身を含む): 52635744

約数和(自身を除く): 31288064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 184, 230, 368, 460, 736, 920, 1840, 3680, 5801, 11602, 23204, 29005, 46408, 58010, 92816, 116020, 133423, 185632, 232040, 266846, 464080, 533692, 667115, 928160, 1067384, 1334230, 2134768, 2668460, 4269536, 5336920, 10673840, 21347680]

約数ペア:

[(1, 21347680), (2, 10673840), (4, 5336920), (5, 4269536), (8, 2668460), (10, 2134768), (16, 1334230), (20, 1067384), (23, 928160), (32, 667115), (40, 533692), (46, 464080), (80, 266846), (92, 232040), (115, 185632), (160, 133423), (184, 116020), (230, 92816), (368, 58010), (460, 46408), (736, 29005), (920, 23204), (1840, 11602), (3680, 5801)]