21790582

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{359}}^1$

素因数の和:492

約数の個数: 32

約数和(自身を含む): 37324800

約数和(自身を除く): 15534218

約数列:

[1, 2, 11, 22, 31, 62, 89, 178, 341, 359, 682, 718, 979, 1958, 2759, 3949, 5518, 7898, 11129, 22258, 30349, 31951, 60698, 63902, 122419, 244838, 351461, 702922, 990481, 1980962, 10895291, 21790582]

約数ペア:

[(1, 21790582), (2, 10895291), (11, 1980962), (22, 990481), (31, 702922), (62, 351461), (89, 244838), (178, 122419), (341, 63902), (359, 60698), (682, 31951), (718, 30349), (979, 22258), (1958, 11129), (2759, 7898), (3949, 5518)]