420139791

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{178859}}^1$

素因数の和:178900

約数の個数: 20

約数和(自身を含む): 649261800

約数和(自身を除く): 229122009

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 178859, 536577, 1609731, 4829193, 5186911, 14487579, 15560733, 46682199, 140046597, 420139791]

約数ペア:

[(1, 420139791), (3, 140046597), (9, 46682199), (27, 15560733), (29, 14487579), (81, 5186911), (87, 4829193), (261, 1609731), (783, 536577), (2349, 178859)]