212292009

素因数分解:

$3^4\times {\mathrm{1223}}^1\times {\mathrm{2143}}^1$

素因数の和:3378

約数の個数: 20

約数和(自身を含む): 317534976

約数和(自身を除く): 105242967

約数列:

[1, 3, 9, 27, 81, 1223, 2143, 3669, 6429, 11007, 19287, 33021, 57861, 99063, 173583, 2620889, 7862667, 23588001, 70764003, 212292009]

約数ペア:

[(1, 212292009), (3, 70764003), (9, 23588001), (27, 7862667), (81, 2620889), (1223, 173583), (2143, 99063), (3669, 57861), (6429, 33021), (11007, 19287)]