21624988

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1151}}^1$

素因数の和:1234

約数の個数: 48

約数和(自身を含む): 47996928

約数和(自身を除く): 26371940

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 61, 77, 122, 154, 244, 308, 427, 671, 854, 1151, 1342, 1708, 2302, 2684, 4604, 4697, 8057, 9394, 12661, 16114, 18788, 25322, 32228, 50644, 70211, 88627, 140422, 177254, 280844, 354508, 491477, 772321, 982954, 1544642, 1965908, 3089284, 5406247, 10812494, 21624988]

約数ペア:

[(1, 21624988), (2, 10812494), (4, 5406247), (7, 3089284), (11, 1965908), (14, 1544642), (22, 982954), (28, 772321), (44, 491477), (61, 354508), (77, 280844), (122, 177254), (154, 140422), (244, 88627), (308, 70211), (427, 50644), (671, 32228), (854, 25322), (1151, 18788), (1342, 16114), (1708, 12661), (2302, 9394), (2684, 8057), (4604, 4697)]