421630677

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{400409}}^1$

素因数の和:400434

約数の個数: 20

約数和(自身を含む): 678294540

約数和(自身を除く): 256663863

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 400409, 1201227, 3603681, 5205317, 10811043, 15615951, 32433129, 46847853, 140543559, 421630677]

約数ペア:

[(1, 421630677), (3, 140543559), (9, 46847853), (13, 32433129), (27, 15615951), (39, 10811043), (81, 5205317), (117, 3603681), (351, 1201227), (1053, 400409)]