18710013

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{7487}}^1$

素因数の和:7521

約数の個数: 24

約数和(自身を含む): 30730752

約数和(自身を除く): 12020739

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 7487, 22461, 52409, 127279, 157227, 366863, 381837, 890953, 1100589, 2672859, 6236671, 18710013]

約数ペア:

[(1, 18710013), (3, 6236671), (7, 2672859), (17, 1100589), (21, 890953), (49, 381837), (51, 366863), (119, 157227), (147, 127279), (357, 52409), (833, 22461), (2499, 7487)]