21209611

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1$

素因数の和:402

約数の個数: 16

約数和(自身を含む): 23113728

約数和(自身を除く): 1904117

約数列:

[1, 23, 31, 151, 197, 713, 3473, 4531, 4681, 6107, 29747, 107663, 140461, 684181, 922157, 21209611]

約数ペア:

[(1, 21209611), (23, 922157), (31, 684181), (151, 140461), (197, 107663), (713, 29747), (3473, 6107), (4531, 4681)]