18978802

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{1063}}^1$

素因数の和:1257

約数の個数: 16

約数和(自身を含む): 29111040

約数和(自身を除く): 10132238

約数列:

[1, 2, 79, 113, 158, 226, 1063, 2126, 8927, 17854, 83977, 120119, 167954, 240238, 9489401, 18978802]

約数ペア:

[(1, 18978802), (2, 9489401), (79, 240238), (113, 167954), (158, 120119), (226, 83977), (1063, 17854), (2126, 8927)]