31980247

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{3911}}^1$

素因数の和:3978

約数の個数: 16

約数和(自身を含む): 37461312

約数和(自身を除く): 5481065

約数列:

[1, 13, 17, 37, 221, 481, 629, 3911, 8177, 50843, 66487, 144707, 864331, 1881191, 2460019, 31980247]

約数ペア:

[(1, 31980247), (13, 2460019), (17, 1881191), (37, 864331), (221, 144707), (481, 66487), (629, 50843), (3911, 8177)]