20125845

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23539}}^1$

素因数の和:23569

約数の個数: 24

約数和(自身を含む): 36722400

約数和(自身を除く): 16596555

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 23539, 70617, 117695, 211851, 353085, 447241, 1059255, 1341723, 2236205, 4025169, 6708615, 20125845]

約数ペア:

[(1, 20125845), (3, 6708615), (5, 4025169), (9, 2236205), (15, 1341723), (19, 1059255), (45, 447241), (57, 353085), (95, 211851), (171, 117695), (285, 70617), (855, 23539)]