21872055

素因数分解:

$3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{14437}}^1$

素因数の和:14546

約数の個数: 16

約数和(自身を含む): 35344224

約数和(自身を除く): 13472169

約数列:

[1, 3, 5, 15, 101, 303, 505, 1515, 14437, 43311, 72185, 216555, 1458137, 4374411, 7290685, 21872055]

約数ペア:

[(1, 21872055), (3, 7290685), (5, 4374411), (15, 1458137), (101, 216555), (303, 72185), (505, 43311), (1515, 14437)]