865202391

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{135209}}^1$

素因数の和:135300

約数の個数: 20

約数和(自身を含む): 1308832800

約数和(自身を除く): 443630409

約数列:

[1, 3, 9, 27, 79, 81, 237, 711, 2133, 6399, 135209, 405627, 1216881, 3650643, 10681511, 10951929, 32044533, 96133599, 288400797, 865202391]

約数ペア:

[(1, 865202391), (3, 288400797), (9, 96133599), (27, 32044533), (79, 10951929), (81, 10681511), (237, 3650643), (711, 1216881), (2133, 405627), (6399, 135209)]