19155999

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{617}}^1$

素因数の和:830

約数の個数: 16

約数和(自身を含む): 26104320

約数和(自身を除く): 6948321

約数列:

[1, 3, 79, 131, 237, 393, 617, 1851, 10349, 31047, 48743, 80827, 146229, 242481, 6385333, 19155999]

約数ペア:

[(1, 19155999), (3, 6385333), (79, 242481), (131, 146229), (237, 80827), (393, 48743), (617, 31047), (1851, 10349)]