15721421139

素因数分解:

$3^4\times {\mathrm{401}}^1\times {\mathrm{484019}}^1$

素因数の和:484432

約数の個数: 20

約数和(自身を含む): 23543700840

約数和(自身を除く): 7822279701

約数列:

[1, 3, 9, 27, 81, 401, 1203, 3609, 10827, 32481, 484019, 1452057, 4356171, 13068513, 39205539, 194091619, 582274857, 1746824571, 5240473713, 15721421139]

約数ペア:

[(1, 15721421139), (3, 5240473713), (9, 1746824571), (27, 582274857), (81, 194091619), (401, 39205539), (1203, 13068513), (3609, 4356171), (10827, 1452057), (32481, 484019)]