218790719

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{40123}}^1$

素因数の和:40190

約数の個数: 16

約数和(自身を含む): 269633280

約数和(自身を除く): 50842561

約数列:

[1, 7, 19, 41, 133, 287, 779, 5453, 40123, 280861, 762337, 1645043, 5336359, 11515301, 31255817, 218790719]

約数ペア:

[(1, 218790719), (7, 31255817), (19, 11515301), (41, 5336359), (133, 1645043), (287, 762337), (779, 280861), (5453, 40123)]