12781431

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3767}}^1$

素因数の和:3815

約数の個数: 24

約数和(自身を含む): 20573280

約数和(自身を除く): 7791849

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 261, 377, 1131, 3393, 3767, 11301, 33903, 48971, 109243, 146913, 327729, 440739, 983187, 1420159, 4260477, 12781431]

約数ペア:

[(1, 12781431), (3, 4260477), (9, 1420159), (13, 983187), (29, 440739), (39, 327729), (87, 146913), (117, 109243), (261, 48971), (377, 33903), (1131, 11301), (3393, 3767)]