19971050

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^2\times {\mathrm{3301}}^1$

素因数の和:3335

約数の個数: 36

約数和(自身を含む): 40842438

約数和(自身を除く): 20871388

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 242, 275, 550, 605, 1210, 3025, 3301, 6050, 6602, 16505, 33010, 36311, 72622, 82525, 165050, 181555, 363110, 399421, 798842, 907775, 1815550, 1997105, 3994210, 9985525, 19971050]

約数ペア:

[(1, 19971050), (2, 9985525), (5, 3994210), (10, 1997105), (11, 1815550), (22, 907775), (25, 798842), (50, 399421), (55, 363110), (110, 181555), (121, 165050), (242, 82525), (275, 72622), (550, 36311), (605, 33010), (1210, 16505), (3025, 6602), (3301, 6050)]