21217022

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{1723}}^1$

素因数の和:1903

約数の個数: 16

約数和(自身を含む): 32769792

約数和(自身を除く): 11552770

約数列:

[1, 2, 47, 94, 131, 262, 1723, 3446, 6157, 12314, 80981, 161962, 225713, 451426, 10608511, 21217022]

約数ペア:

[(1, 21217022), (2, 10608511), (47, 451426), (94, 225713), (131, 161962), (262, 80981), (1723, 12314), (3446, 6157)]