18419038

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{7681}}^1$

素因数の和:7803

約数の個数: 16

約数和(自身を含む): 30420720

約数和(自身を除く): 12001682

約数列:

[1, 2, 11, 22, 109, 218, 1199, 2398, 7681, 15362, 84491, 168982, 837229, 1674458, 9209519, 18419038]

約数ペア:

[(1, 18419038), (2, 9209519), (11, 1674458), (22, 837229), (109, 168982), (218, 84491), (1199, 15362), (2398, 7681)]