20516574

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{7109}}^1$

素因数の和:7164

約数の個数: 32

約数和(自身を含む): 45390240

約数和(自身を除く): 24873666

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 74, 78, 111, 222, 481, 962, 1443, 2886, 7109, 14218, 21327, 42654, 92417, 184834, 263033, 277251, 526066, 554502, 789099, 1578198, 3419429, 6838858, 10258287, 20516574]

約数ペア:

[(1, 20516574), (2, 10258287), (3, 6838858), (6, 3419429), (13, 1578198), (26, 789099), (37, 554502), (39, 526066), (74, 277251), (78, 263033), (111, 184834), (222, 92417), (481, 42654), (962, 21327), (1443, 14218), (2886, 7109)]