25321815

素因数分解:

$3^6\times 5^1\times {\mathrm{6947}}^1$

素因数の和:6970

約数の個数: 28

約数和(自身を含む): 45564984

約数和(自身を除く): 20243169

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 6947, 20841, 34735, 62523, 104205, 187569, 312615, 562707, 937845, 1688121, 2813535, 5064363, 8440605, 25321815]

約数ペア:

[(1, 25321815), (3, 8440605), (5, 5064363), (9, 2813535), (15, 1688121), (27, 937845), (45, 562707), (81, 312615), (135, 187569), (243, 104205), (405, 62523), (729, 34735), (1215, 20841), (3645, 6947)]