20705805

素因数分解:

$3^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{2027}}^1$

素因数の和:2265

約数の個数: 24

約数和(自身を含む): 36065952

約数和(自身を除く): 15360147

約数列:

[1, 3, 5, 9, 15, 45, 227, 681, 1135, 2027, 2043, 3405, 6081, 10135, 10215, 18243, 30405, 91215, 460129, 1380387, 2300645, 4141161, 6901935, 20705805]

約数ペア:

[(1, 20705805), (3, 6901935), (5, 4141161), (9, 2300645), (15, 1380387), (45, 460129), (227, 91215), (681, 30405), (1135, 18243), (2027, 10215), (2043, 10135), (3405, 6081)]