2101215

素因数分解:

$3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1103}}^1$

素因数の和:1238

約数の個数: 16

約数和(自身を含む): 3391488

約数和(自身を除く): 1290273

約数列:

[1, 3, 5, 15, 127, 381, 635, 1103, 1905, 3309, 5515, 16545, 140081, 420243, 700405, 2101215]

約数ペア:

[(1, 2101215), (3, 700405), (5, 420243), (15, 140081), (127, 16545), (381, 5515), (635, 3309), (1103, 1905)]