21313860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3259}}^1$

素因数の和:3380

約数の個数: 48

約数和(自身を含む): 60244800

約数和(自身を除く): 38930940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 218, 327, 436, 545, 654, 1090, 1308, 1635, 2180, 3259, 3270, 6518, 6540, 9777, 13036, 16295, 19554, 32590, 39108, 48885, 65180, 97770, 195540, 355231, 710462, 1065693, 1420924, 1776155, 2131386, 3552310, 4262772, 5328465, 7104620, 10656930, 21313860]

約数ペア:

[(1, 21313860), (2, 10656930), (3, 7104620), (4, 5328465), (5, 4262772), (6, 3552310), (10, 2131386), (12, 1776155), (15, 1420924), (20, 1065693), (30, 710462), (60, 355231), (109, 195540), (218, 97770), (327, 65180), (436, 48885), (545, 39108), (654, 32590), (1090, 19554), (1308, 16295), (1635, 13036), (2180, 9777), (3259, 6540), (3270, 6518)]