20682051

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{19}}^2\times {\mathrm{113}}^1$

素因数の和:180

約数の個数: 36

約数和(自身を含む): 31793688

約数和(自身を除く): 11111637

約数列:

[1, 3, 13, 19, 39, 57, 113, 169, 247, 339, 361, 507, 741, 1083, 1469, 2147, 3211, 4407, 4693, 6441, 9633, 14079, 19097, 27911, 40793, 57291, 61009, 83733, 122379, 183027, 362843, 530309, 1088529, 1590927, 6894017, 20682051]

約数ペア:

[(1, 20682051), (3, 6894017), (13, 1590927), (19, 1088529), (39, 530309), (57, 362843), (113, 183027), (169, 122379), (247, 83733), (339, 61009), (361, 57291), (507, 40793), (741, 27911), (1083, 19097), (1469, 14079), (2147, 9633), (3211, 6441), (4407, 4693)]