21545820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{119699}}^1$

素因数の和:119714

約数の個数: 36

約数和(自身を含む): 65356200

約数和(自身を除く): 43810380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 119699, 239398, 359097, 478796, 598495, 718194, 1077291, 1196990, 1436388, 1795485, 2154582, 2393980, 3590970, 4309164, 5386455, 7181940, 10772910, 21545820]

約数ペア:

[(1, 21545820), (2, 10772910), (3, 7181940), (4, 5386455), (5, 4309164), (6, 3590970), (9, 2393980), (10, 2154582), (12, 1795485), (15, 1436388), (18, 1196990), (20, 1077291), (30, 718194), (36, 598495), (45, 478796), (60, 359097), (90, 239398), (180, 119699)]