638291206

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{23297}}^1$

素因数の和:23428

約数の個数: 32

約数和(自身を含む): 1163036160

約数和(自身を除く): 524744954

約数列:

[1, 2, 7, 14, 19, 38, 103, 133, 206, 266, 721, 1442, 1957, 3914, 13699, 23297, 27398, 46594, 163079, 326158, 442643, 885286, 2399591, 3098501, 4799182, 6197002, 16797137, 33594274, 45592229, 91184458, 319145603, 638291206]

約数ペア:

[(1, 638291206), (2, 319145603), (7, 91184458), (14, 45592229), (19, 33594274), (38, 16797137), (103, 6197002), (133, 4799182), (206, 3098501), (266, 2399591), (721, 885286), (1442, 442643), (1957, 326158), (3914, 163079), (13699, 46594), (23297, 27398)]