20180281

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{277}}^1$

素因数の和:504

約数の個数: 16

約数和(自身を含む): 22818240

約数和(自身を除く): 2637959

約数列:

[1, 11, 37, 179, 277, 407, 1969, 3047, 6623, 10249, 49583, 72853, 112739, 545413, 1834571, 20180281]

約数ペア:

[(1, 20180281), (11, 1834571), (37, 545413), (179, 112739), (277, 72853), (407, 49583), (1969, 10249), (3047, 6623)]