20378745

素因数分解:

$3^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2371}}^1$

素因数の和:2573

約数の個数: 24

約数和(自身を含む): 35523072

約数和(自身を除く): 15144327

約数列:

[1, 3, 5, 9, 15, 45, 191, 573, 955, 1719, 2371, 2865, 7113, 8595, 11855, 21339, 35565, 106695, 452861, 1358583, 2264305, 4075749, 6792915, 20378745]

約数ペア:

[(1, 20378745), (3, 6792915), (5, 4075749), (9, 2264305), (15, 1358583), (45, 452861), (191, 106695), (573, 35565), (955, 21339), (1719, 11855), (2371, 8595), (2865, 7113)]