21307380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{379}}^1\times {\mathrm{937}}^1$

素因数の和:1328

約数の個数: 48

約数和(自身を含む): 59881920

約数和(自身を除く): 38574540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 379, 758, 937, 1137, 1516, 1874, 1895, 2274, 2811, 3748, 3790, 4548, 4685, 5622, 5685, 7580, 9370, 11244, 11370, 14055, 18740, 22740, 28110, 56220, 355123, 710246, 1065369, 1420492, 1775615, 2130738, 3551230, 4261476, 5326845, 7102460, 10653690, 21307380]

約数ペア:

[(1, 21307380), (2, 10653690), (3, 7102460), (4, 5326845), (5, 4261476), (6, 3551230), (10, 2130738), (12, 1775615), (15, 1420492), (20, 1065369), (30, 710246), (60, 355123), (379, 56220), (758, 28110), (937, 22740), (1137, 18740), (1516, 14055), (1874, 11370), (1895, 11244), (2274, 9370), (2811, 7580), (3748, 5685), (3790, 5622), (4548, 4685)]