21705420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{32887}}^1$

素因数の和:32910

約数の個数: 48

約数和(自身を含む): 66302208

約数和(自身を除く): 44596788

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 32887, 65774, 98661, 131548, 164435, 197322, 328870, 361757, 394644, 493305, 657740, 723514, 986610, 1085271, 1447028, 1808785, 1973220, 2170542, 3617570, 4341084, 5426355, 7235140, 10852710, 21705420]

約数ペア:

[(1, 21705420), (2, 10852710), (3, 7235140), (4, 5426355), (5, 4341084), (6, 3617570), (10, 2170542), (11, 1973220), (12, 1808785), (15, 1447028), (20, 1085271), (22, 986610), (30, 723514), (33, 657740), (44, 493305), (55, 394644), (60, 361757), (66, 328870), (110, 197322), (132, 164435), (165, 131548), (220, 98661), (330, 65774), (660, 32887)]