21740985

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{69019}}^1$

素因数の和:69037

約数の個数: 24

約数和(自身を含む): 43068480

約数和(自身を除く): 21327495

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 69019, 207057, 345095, 483133, 621171, 1035285, 1449399, 2415665, 3105855, 4348197, 7246995, 21740985]

約数ペア:

[(1, 21740985), (3, 7246995), (5, 4348197), (7, 3105855), (9, 2415665), (15, 1449399), (21, 1035285), (35, 621171), (45, 483133), (63, 345095), (105, 207057), (315, 69019)]