18763647

素因数分解:

$3^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{1381}}^1$

素因数の和:2038

約数の個数: 16

約数和(自身を含む): 28657152

約数和(自身を除く): 9893505

約数列:

[1, 3, 7, 21, 647, 1381, 1941, 4143, 4529, 9667, 13587, 29001, 893507, 2680521, 6254549, 18763647]

約数ペア:

[(1, 18763647), (3, 6254549), (7, 2680521), (21, 893507), (647, 29001), (1381, 13587), (1941, 9667), (4143, 4529)]