18993377

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{457}}^1$

素因数の和:632

約数の個数: 16

約数和(自身を含む): 21544320

約数和(自身を除く): 2550943

約数列:

[1, 13, 23, 139, 299, 457, 1807, 3197, 5941, 10511, 41561, 63523, 136643, 825799, 1461029, 18993377]

約数ペア:

[(1, 18993377), (13, 1461029), (23, 825799), (139, 136643), (299, 63523), (457, 41561), (1807, 10511), (3197, 5941)]