85878981

素因数分解:

$3^3\times {\mathrm{149}}^1\times {\mathrm{21347}}^1$

素因数の和:21505

約数の個数: 16

約数和(自身を含む): 128088000

約数和(自身を除く): 42209019

約数列:

[1, 3, 9, 27, 149, 447, 1341, 4023, 21347, 64041, 192123, 576369, 3180703, 9542109, 28626327, 85878981]

約数ペア:

[(1, 85878981), (3, 28626327), (9, 9542109), (27, 3180703), (149, 576369), (447, 192123), (1341, 64041), (4023, 21347)]