81438154

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{41849}}^1$

素因数の和:41997

約数の個数: 16

約数和(自身を含む): 140616000

約数和(自身を除く): 59177846

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 41849, 83698, 292943, 585886, 5817011, 11634022, 40719077, 81438154]

約数ペア:

[(1, 81438154), (2, 40719077), (7, 11634022), (14, 5817011), (139, 585886), (278, 292943), (973, 83698), (1946, 41849)]