28503495

素因数分解:

$3^4\times 5^1\times {\mathrm{70379}}^1$

素因数の和:70396

約数の個数: 20

約数和(自身を含む): 51095880

約数和(自身を除く): 22592385

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 70379, 211137, 351895, 633411, 1055685, 1900233, 3167055, 5700699, 9501165, 28503495]

約数ペア:

[(1, 28503495), (3, 9501165), (5, 5700699), (9, 3167055), (15, 1900233), (27, 1055685), (45, 633411), (81, 351895), (135, 211137), (405, 70379)]