20555955

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{65257}}^1$

素因数の和:65275

約数の個数: 24

約数和(自身を含む): 40720992

約数和(自身を除く): 20165037

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 65257, 195771, 326285, 456799, 587313, 978855, 1370397, 2283995, 2936565, 4111191, 6851985, 20555955]

約数ペア:

[(1, 20555955), (3, 6851985), (5, 4111191), (7, 2936565), (9, 2283995), (15, 1370397), (21, 978855), (35, 587313), (45, 456799), (63, 326285), (105, 195771), (315, 65257)]