18857913

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{2699}}^1$

素因数の和:2856

約数の個数: 16

約数和(自身を含む): 26827200

約数和(自身を除く): 7969287

約数列:

[1, 3, 17, 51, 137, 411, 2329, 2699, 6987, 8097, 45883, 137649, 369763, 1109289, 6285971, 18857913]

約数ペア:

[(1, 18857913), (3, 6285971), (17, 1109289), (51, 369763), (137, 137649), (411, 45883), (2329, 8097), (2699, 6987)]