81612866

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{967}}^1\times {\mathrm{2221}}^1$

素因数の和:3209

約数の個数: 16

約数和(自身を含む): 129053760

約数和(自身を除く): 47440894

約数列:

[1, 2, 19, 38, 967, 1934, 2221, 4442, 18373, 36746, 42199, 84398, 2147707, 4295414, 40806433, 81612866]

約数ペア:

[(1, 81612866), (2, 40806433), (19, 4295414), (38, 2147707), (967, 84398), (1934, 42199), (2221, 36746), (4442, 18373)]