21520510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{6311}}^1$

素因数の和:6360

約数の個数: 32

約数和(自身を含む): 43628544

約数和(自身を除く): 22108034

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 62, 110, 155, 310, 341, 682, 1705, 3410, 6311, 12622, 31555, 63110, 69421, 138842, 195641, 347105, 391282, 694210, 978205, 1956410, 2152051, 4304102, 10760255, 21520510]

約数ペア:

[(1, 21520510), (2, 10760255), (5, 4304102), (10, 2152051), (11, 1956410), (22, 978205), (31, 694210), (55, 391282), (62, 347105), (110, 195641), (155, 138842), (310, 69421), (341, 63110), (682, 31555), (1705, 12622), (3410, 6311)]