1287418

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{421}}^1$

素因数の和:573

約数の個数: 16

約数和(自身を含む): 2126880

約数和(自身を除く): 839462

約数列:

[1, 2, 11, 22, 139, 278, 421, 842, 1529, 3058, 4631, 9262, 58519, 117038, 643709, 1287418]

約数ペア:

[(1, 1287418), (2, 643709), (11, 117038), (22, 58519), (139, 9262), (278, 4631), (421, 3058), (842, 1529)]