40342498

素因数分解:

$2^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{21997}}^1$

素因数の和:22137

約数の個数: 16

約数和(自身を含む): 69689664

約数和(自身を除く): 29347166

約数列:

[1, 2, 7, 14, 131, 262, 917, 1834, 21997, 43994, 153979, 307958, 2881607, 5763214, 20171249, 40342498]

約数ペア:

[(1, 40342498), (2, 20171249), (7, 5763214), (14, 2881607), (131, 307958), (262, 153979), (917, 43994), (1834, 21997)]