81356723

素因数分解:

$7^1\times {\mathrm{113}}^1\times {\mathrm{163}}^1\times {\mathrm{631}}^1$

素因数の和:914

約数の個数: 16

約数和(自身を含む): 94526976

約数和(自身を除く): 13170253

約数列:

[1, 7, 113, 163, 631, 791, 1141, 4417, 18419, 71303, 102853, 128933, 499121, 719971, 11622389, 81356723]

約数ペア:

[(1, 81356723), (7, 11622389), (113, 719971), (163, 499121), (631, 128933), (791, 102853), (1141, 71303), (4417, 18419)]