21565522

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1$

素因数の和:454

約数の個数: 32

約数和(自身を含む): 36900864

約数和(自身を除く): 15335342

約数列:

[1, 2, 11, 22, 31, 62, 103, 206, 307, 341, 614, 682, 1133, 2266, 3193, 3377, 6386, 6754, 9517, 19034, 31621, 35123, 63242, 70246, 104687, 209374, 347831, 695662, 980251, 1960502, 10782761, 21565522]

約数ペア:

[(1, 21565522), (2, 10782761), (11, 1960502), (22, 980251), (31, 695662), (62, 347831), (103, 209374), (206, 104687), (307, 70246), (341, 63242), (614, 35123), (682, 31621), (1133, 19034), (2266, 9517), (3193, 6754), (3377, 6386)]