19281451

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{293}}^1$

素因数の和:403

約数の個数: 24

約数和(自身を含む): 24131520

約数和(自身を除く): 4850069

約数列:

[1, 7, 17, 49, 79, 119, 293, 553, 833, 1343, 2051, 3871, 4981, 9401, 14357, 23147, 34867, 65807, 162029, 244069, 393499, 1134203, 2754493, 19281451]

約数ペア:

[(1, 19281451), (7, 2754493), (17, 1134203), (49, 393499), (79, 244069), (119, 162029), (293, 65807), (553, 34867), (833, 23147), (1343, 14357), (2051, 9401), (3871, 4981)]