21717494

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{13291}}^1$

素因数の和:13355

約数の個数: 16

約数和(自身を含む): 35090880

約数和(自身を除く): 13373386

約数列:

[1, 2, 19, 38, 43, 86, 817, 1634, 13291, 26582, 252529, 505058, 571513, 1143026, 10858747, 21717494]

約数ペア:

[(1, 21717494), (2, 10858747), (19, 1143026), (38, 571513), (43, 505058), (86, 252529), (817, 26582), (1634, 13291)]