2171975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:227

約数の個数: 24

約数和(自身を含む): 2989392

約数和(自身を除く): 817417

約数列:

[1, 5, 13, 25, 41, 65, 163, 205, 325, 533, 815, 1025, 2119, 2665, 4075, 6683, 10595, 13325, 33415, 52975, 86879, 167075, 434395, 2171975]

約数ペア:

[(1, 2171975), (5, 434395), (13, 167075), (25, 86879), (41, 52975), (65, 33415), (163, 13325), (205, 10595), (325, 6683), (533, 4075), (815, 2665), (1025, 2119)]