31881759

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{4027}}^1$

素因数の和:4079

約数の個数: 32

約数和(自身を含む): 54136320

約数和(自身を除く): 22254561

約数列:

[1, 3, 7, 13, 21, 29, 39, 87, 91, 203, 273, 377, 609, 1131, 2639, 4027, 7917, 12081, 28189, 52351, 84567, 116783, 157053, 350349, 366457, 817481, 1099371, 1518179, 2452443, 4554537, 10627253, 31881759]

約数ペア:

[(1, 31881759), (3, 10627253), (7, 4554537), (13, 2452443), (21, 1518179), (29, 1099371), (39, 817481), (87, 366457), (91, 350349), (203, 157053), (273, 116783), (377, 84567), (609, 52351), (1131, 28189), (2639, 12081), (4027, 7917)]