31281159

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{16369}}^1$

素因数の和:16399

約数の個数: 24

約数和(自身を含む): 52253040

約数和(自身を除く): 20971881

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 16369, 49107, 114583, 212797, 343749, 638391, 802081, 1489579, 2406243, 4468737, 10427053, 31281159]

約数ペア:

[(1, 31281159), (3, 10427053), (7, 4468737), (13, 2406243), (21, 1489579), (39, 802081), (49, 638391), (91, 343749), (147, 212797), (273, 114583), (637, 49107), (1911, 16369)]