21675820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{34961}}^1$

素因数の和:35001

約数の個数: 24

約数和(自身を含む): 46988928

約数和(自身を除く): 25313108

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 34961, 69922, 139844, 174805, 349610, 699220, 1083791, 2167582, 4335164, 5418955, 10837910, 21675820]

約数ペア:

[(1, 21675820), (2, 10837910), (4, 5418955), (5, 4335164), (10, 2167582), (20, 1083791), (31, 699220), (62, 349610), (124, 174805), (155, 139844), (310, 69922), (620, 34961)]