217007492

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{321017}}^1$

素因数の和:321047

約数の個数: 18

約数和(自身を含む): 411224058

約数和(自身を除く): 194216566

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 321017, 642034, 1284068, 4173221, 8346442, 16692884, 54251873, 108503746, 217007492]

約数ペア:

[(1, 217007492), (2, 108503746), (4, 54251873), (13, 16692884), (26, 8346442), (52, 4173221), (169, 1284068), (338, 642034), (676, 321017)]