21387082

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{431}}^1\times {\mathrm{577}}^1$

素因数の和:1053

約数の個数: 16

約数和(自身を含む): 32959872

約数和(自身を除く): 11572790

約数列:

[1, 2, 43, 86, 431, 577, 862, 1154, 18533, 24811, 37066, 49622, 248687, 497374, 10693541, 21387082]

約数ペア:

[(1, 21387082), (2, 10693541), (43, 497374), (86, 248687), (431, 49622), (577, 37066), (862, 24811), (1154, 18533)]