2097025

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{521}}^1$

素因数の和:561

約数の個数: 24

約数和(自身を含む): 3106944

約数和(自身を除く): 1009919

約数列:

[1, 5, 7, 23, 25, 35, 115, 161, 175, 521, 575, 805, 2605, 3647, 4025, 11983, 13025, 18235, 59915, 83881, 91175, 299575, 419405, 2097025]

約数ペア:

[(1, 2097025), (5, 419405), (7, 299575), (23, 91175), (25, 83881), (35, 59915), (115, 18235), (161, 13025), (175, 11983), (521, 4025), (575, 3647), (805, 2605)]