21411275

素因数分解:

$5^2\times {\mathrm{23}}^2\times {\mathrm{1619}}^1$

素因数の和:1675

約数の個数: 18

約数和(自身を含む): 27771660

約数和(自身を除く): 6360385

約数列:

[1, 5, 23, 25, 115, 529, 575, 1619, 2645, 8095, 13225, 37237, 40475, 186185, 856451, 930925, 4282255, 21411275]

約数ペア:

[(1, 21411275), (5, 4282255), (23, 930925), (25, 856451), (115, 186185), (529, 40475), (575, 37237), (1619, 13225), (2645, 8095)]