489495487

素因数分解:

${\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{233}}^1\times {\mathrm{401}}^1$

素因数の和:691

約数の個数: 24

約数和(自身を含む): 550862208

約数和(自身を除く): 61366721

約数列:

[1, 13, 31, 169, 233, 401, 403, 3029, 5213, 5239, 7223, 12431, 39377, 67769, 93433, 93899, 161603, 1214629, 1220687, 2100839, 2896423, 15790177, 37653499, 489495487]

約数ペア:

[(1, 489495487), (13, 37653499), (31, 15790177), (169, 2896423), (233, 2100839), (401, 1220687), (403, 1214629), (3029, 161603), (5213, 93899), (5239, 93433), (7223, 67769), (12431, 39377)]