21777245

素因数分解:

$5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{2741}}^1$

素因数の和:2980

約数の個数: 16

約数和(自身を含む): 30008448

約数和(自身を除く): 8231203

約数列:

[1, 5, 7, 35, 227, 1135, 1589, 2741, 7945, 13705, 19187, 95935, 622207, 3111035, 4355449, 21777245]

約数ペア:

[(1, 21777245), (5, 4355449), (7, 3111035), (35, 622207), (227, 95935), (1135, 19187), (1589, 13705), (2741, 7945)]