208756491

素因数分解:

$3^1\times {\mathrm{131}}^1\times {\mathrm{647}}^1\times {\mathrm{821}}^1$

素因数の和:1602

約数の個数: 16

約数和(自身を含む): 281242368

約数和(自身を除く): 72485877

約数列:

[1, 3, 131, 393, 647, 821, 1941, 2463, 84757, 107551, 254271, 322653, 531187, 1593561, 69585497, 208756491]

約数ペア:

[(1, 208756491), (3, 69585497), (131, 1593561), (393, 531187), (647, 322653), (821, 254271), (1941, 107551), (2463, 84757)]