20926087

素因数分解:

$7^3\times {\mathrm{13}}^2\times {\mathrm{19}}^2$

素因数の和:85

約数の個数: 36

約数和(自身を含む): 27889200

約数和(自身を除く): 6963113

約数列:

[1, 7, 13, 19, 49, 91, 133, 169, 247, 343, 361, 637, 931, 1183, 1729, 2527, 3211, 4459, 4693, 6517, 8281, 12103, 17689, 22477, 32851, 57967, 61009, 84721, 123823, 157339, 229957, 427063, 1101373, 1609699, 2989441, 20926087]

約数ペア:

[(1, 20926087), (7, 2989441), (13, 1609699), (19, 1101373), (49, 427063), (91, 229957), (133, 157339), (169, 123823), (247, 84721), (343, 61009), (361, 57967), (637, 32851), (931, 22477), (1183, 17689), (1729, 12103), (2527, 8281), (3211, 6517), (4459, 4693)]