21752790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{13681}}^1$

素因数の和:13744

約数の個数: 32

約数和(自身を含む): 53195616

約数和(自身を除く): 31442826

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 53, 106, 159, 265, 318, 530, 795, 1590, 13681, 27362, 41043, 68405, 82086, 136810, 205215, 410430, 725093, 1450186, 2175279, 3625465, 4350558, 7250930, 10876395, 21752790]

約数ペア:

[(1, 21752790), (2, 10876395), (3, 7250930), (5, 4350558), (6, 3625465), (10, 2175279), (15, 1450186), (30, 725093), (53, 410430), (106, 205215), (159, 136810), (265, 82086), (318, 68405), (530, 41043), (795, 27362), (1590, 13681)]