81285477

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{15671}}^1$

素因数の和:15713

約数の個数: 32

約数和(自身を含む): 140421120

約数和(自身を除く): 59135643

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 5187, 15671, 47013, 109697, 203723, 297749, 329091, 611169, 893247, 1426061, 2084243, 3870737, 4278183, 6252729, 11612211, 27095159, 81285477]

約数ペア:

[(1, 81285477), (3, 27095159), (7, 11612211), (13, 6252729), (19, 4278183), (21, 3870737), (39, 2084243), (57, 1426061), (91, 893247), (133, 611169), (247, 329091), (273, 297749), (399, 203723), (741, 109697), (1729, 47013), (5187, 15671)]