2561757

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{521}}^1$

素因数の和:684

約数の個数: 16

約数和(自身を含む): 3758400

約数和(自身を除く): 1196643

約数列:

[1, 3, 11, 33, 149, 447, 521, 1563, 1639, 4917, 5731, 17193, 77629, 232887, 853919, 2561757]

約数ペア:

[(1, 2561757), (3, 853919), (11, 232887), (33, 77629), (149, 17193), (447, 5731), (521, 4917), (1563, 1639)]