20357955

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12227}}^1$

素因数の和:12275

約数の個数: 24

約数和(自身を含む): 36243792

約数和(自身を除く): 15885837

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12227, 36681, 61135, 110043, 183405, 452399, 550215, 1357197, 2261995, 4071591, 6785985, 20357955]

約数ペア:

[(1, 20357955), (3, 6785985), (5, 4071591), (9, 2261995), (15, 1357197), (37, 550215), (45, 452399), (111, 183405), (185, 110043), (333, 61135), (555, 36681), (1665, 12227)]