31891371

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{631}}^1\times {\mathrm{991}}^1$

素因数の和:1642

約数の個数: 16

約数和(自身を含む): 45139968

約数和(自身を除く): 13248597

約数列:

[1, 3, 17, 51, 631, 991, 1893, 2973, 10727, 16847, 32181, 50541, 625321, 1875963, 10630457, 31891371]

約数ペア:

[(1, 31891371), (3, 10630457), (17, 1875963), (51, 625321), (631, 50541), (991, 32181), (1893, 16847), (2973, 10727)]