21729121351

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{9521}}^1\times {\mathrm{4127}}^1$

素因数の和:13734

約数の個数: 16

約数和(自身を含む): 25156362240

約数和(自身を除く): 3427240889

約数列:

[1, 7, 79, 553, 4127, 9521, 28889, 66647, 326033, 752159, 2282231, 5265113, 39293167, 275052169, 3104160193, 21729121351]

約数ペア:

[(1, 21729121351), (7, 3104160193), (79, 275052169), (553, 39293167), (4127, 5265113), (9521, 2282231), (28889, 752159), (66647, 326033)]