19913615

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2161}}^1$

素因数の和:2282

約数の個数: 16

約数和(自身を含む): 25425120

約数和(自身を除く): 5511505

約数列:

[1, 5, 19, 95, 97, 485, 1843, 2161, 9215, 10805, 41059, 205295, 209617, 1048085, 3982723, 19913615]

約数ペア:

[(1, 19913615), (5, 3982723), (19, 1048085), (95, 209617), (97, 205295), (485, 41059), (1843, 10805), (2161, 9215)]