212217356

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{313931}}^1$

素因数の和:313961

約数の個数: 18

約数和(自身を含む): 402146892

約数和(自身を除く): 189929536

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 313931, 627862, 1255724, 4081103, 8162206, 16324412, 53054339, 106108678, 212217356]

約数ペア:

[(1, 212217356), (2, 106108678), (4, 53054339), (13, 16324412), (26, 8162206), (52, 4081103), (169, 1255724), (338, 627862), (676, 313931)]