420778881

素因数分解:

$3^4\times {\mathrm{563}}^1\times {\mathrm{9227}}^1$

素因数の和:9802

約数の個数: 20

約数和(自身を含む): 629755632

約数和(自身を除く): 208976751

約数列:

[1, 3, 9, 27, 81, 563, 1689, 5067, 9227, 15201, 27681, 45603, 83043, 249129, 747387, 5194801, 15584403, 46753209, 140259627, 420778881]

約数ペア:

[(1, 420778881), (3, 140259627), (9, 46753209), (27, 15584403), (81, 5194801), (563, 747387), (1689, 249129), (5067, 83043), (9227, 45603), (15201, 27681)]