18911631

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{4673}}^1$

素因数の和:4766

約数の個数: 16

約数和(自身を含む): 26922240

約数和(自身を除く): 8010609

約数列:

[1, 3, 19, 57, 71, 213, 1349, 4047, 4673, 14019, 88787, 266361, 331783, 995349, 6303877, 18911631]

約数ペア:

[(1, 18911631), (3, 6303877), (19, 995349), (57, 331783), (71, 266361), (213, 88787), (1349, 14019), (4047, 4673)]