18401747

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{367}}^1$

素因数の和:435

約数の個数: 32

約数和(自身を含む): 24729600

約数和(自身を除く): 6327853

約数列:

[1, 7, 13, 19, 29, 91, 133, 203, 247, 367, 377, 551, 1729, 2569, 2639, 3857, 4771, 6973, 7163, 10643, 33397, 48811, 50141, 74501, 90649, 138359, 202217, 634543, 968513, 1415519, 2628821, 18401747]

約数ペア:

[(1, 18401747), (7, 2628821), (13, 1415519), (19, 968513), (29, 634543), (91, 202217), (133, 138359), (203, 90649), (247, 74501), (367, 50141), (377, 48811), (551, 33397), (1729, 10643), (2569, 7163), (2639, 6973), (3857, 4771)]