21541630

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{937}}^1$

素因数の和:985

約数の個数: 48

約数和(自身を含む): 44911440

約数和(自身を除く): 23369810

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 121, 190, 209, 242, 418, 605, 937, 1045, 1210, 1874, 2090, 2299, 4598, 4685, 9370, 10307, 11495, 17803, 20614, 22990, 35606, 51535, 89015, 103070, 113377, 178030, 195833, 226754, 391666, 566885, 979165, 1133770, 1958330, 2154163, 4308326, 10770815, 21541630]

約数ペア:

[(1, 21541630), (2, 10770815), (5, 4308326), (10, 2154163), (11, 1958330), (19, 1133770), (22, 979165), (38, 566885), (55, 391666), (95, 226754), (110, 195833), (121, 178030), (190, 113377), (209, 103070), (242, 89015), (418, 51535), (605, 35606), (937, 22990), (1045, 20614), (1210, 17803), (1874, 11495), (2090, 10307), (2299, 9370), (4598, 4685)]