21070860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8167}}^1$

素因数の和:8222

約数の個数: 48

約数和(自身を含む): 60377856

約数和(自身を除く): 39306996

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 8167, 16334, 24501, 32668, 40835, 49002, 81670, 98004, 122505, 163340, 245010, 351181, 490020, 702362, 1053543, 1404724, 1755905, 2107086, 3511810, 4214172, 5267715, 7023620, 10535430, 21070860]

約数ペア:

[(1, 21070860), (2, 10535430), (3, 7023620), (4, 5267715), (5, 4214172), (6, 3511810), (10, 2107086), (12, 1755905), (15, 1404724), (20, 1053543), (30, 702362), (43, 490020), (60, 351181), (86, 245010), (129, 163340), (172, 122505), (215, 98004), (258, 81670), (430, 49002), (516, 40835), (645, 32668), (860, 24501), (1290, 16334), (2580, 8167)]