291213351481

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{13247207}}^1$

素因数の和:13247328

約数の個数: 16

約数和(自身を含む): 333829641600

約数和(自身を除く): 42616290119

約数列:

[1, 13, 19, 89, 247, 1157, 1691, 21983, 13247207, 172213691, 251696933, 1179001423, 3272060129, 15327018499, 22401027037, 291213351481]

約数ペア:

[(1, 291213351481), (13, 22401027037), (19, 15327018499), (89, 3272060129), (247, 1179001423), (1157, 251696933), (1691, 172213691), (21983, 13247207)]