12890451

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{19801}}^1$

素因数の和:19842

約数の個数: 16

約数和(自身を含む): 20277248

約数和(自身を除く): 7386797

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 19801, 59403, 138607, 415821, 613831, 1841493, 4296817, 12890451]

約数ペア:

[(1, 12890451), (3, 4296817), (7, 1841493), (21, 613831), (31, 415821), (93, 138607), (217, 59403), (651, 19801)]