18419804

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{5807}}^1$

素因数の和:5885

約数の個数: 24

約数和(自身を含む): 35289408

約数和(自身を除く): 16869604

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 244, 793, 1586, 3172, 5807, 11614, 23228, 75491, 150982, 301964, 354227, 708454, 1416908, 4604951, 9209902, 18419804]

約数ペア:

[(1, 18419804), (2, 9209902), (4, 4604951), (13, 1416908), (26, 708454), (52, 354227), (61, 301964), (122, 150982), (244, 75491), (793, 23228), (1586, 11614), (3172, 5807)]