18261605

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1\times {\mathrm{389}}^1$

素因数の和:664

約数の個数: 16

約数和(自身を含む): 22604400

約数和(自身を除く): 4342795

約数列:

[1, 5, 41, 205, 229, 389, 1145, 1945, 9389, 15949, 46945, 79745, 89081, 445405, 3652321, 18261605]

約数ペア:

[(1, 18261605), (5, 3652321), (41, 445405), (205, 89081), (229, 79745), (389, 46945), (1145, 15949), (1945, 9389)]