81565406

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{136397}}^1$

素因数の和:136435

約数の個数: 16

約数和(自身を含む): 137489184

約数和(自身を除く): 55923778

約数列:

[1, 2, 13, 23, 26, 46, 299, 598, 136397, 272794, 1773161, 3137131, 3546322, 6274262, 40782703, 81565406]

約数ペア:

[(1, 81565406), (2, 40782703), (13, 6274262), (23, 3546322), (26, 3137131), (46, 1773161), (299, 272794), (598, 136397)]