18901491

素因数分解:

$3^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2579}}^1$

素因数の和:2938

約数の個数: 16

約数和(自身を含む): 28896000

約数和(自身を除く): 9994509

約数列:

[1, 3, 7, 21, 349, 1047, 2443, 2579, 7329, 7737, 18053, 54159, 900071, 2700213, 6300497, 18901491]

約数ペア:

[(1, 18901491), (3, 6300497), (7, 2700213), (21, 900071), (349, 54159), (1047, 18053), (2443, 7737), (2579, 7329)]