2161885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1709}}^1$

素因数の和:1748

約数の個数: 16

約数和(自身を含む): 2954880

約数和(自身を除く): 792995

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 1709, 8545, 18799, 39307, 93995, 196535, 432377, 2161885]

約数ペア:

[(1, 2161885), (5, 432377), (11, 196535), (23, 93995), (55, 39307), (115, 18799), (253, 8545), (1265, 1709)]