20214825

素因数分解:

$3^1\times 5^2\times {\mathrm{409}}^1\times {\mathrm{659}}^1$

素因数の和:1081

約数の個数: 24

約数和(自身を含む): 33554400

約数和(自身を除く): 13339575

約数列:

[1, 3, 5, 15, 25, 75, 409, 659, 1227, 1977, 2045, 3295, 6135, 9885, 10225, 16475, 30675, 49425, 269531, 808593, 1347655, 4042965, 6738275, 20214825]

約数ペア:

[(1, 20214825), (3, 6738275), (5, 4042965), (15, 1347655), (25, 808593), (75, 269531), (409, 49425), (659, 30675), (1227, 16475), (1977, 10225), (2045, 9885), (3295, 6135)]