20102805

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{19423}}^1$

素因数の和:19457

約数の個数: 24

約数和(自身を含む): 36361728

約数和(自身を除く): 16258923

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 19423, 58269, 97115, 174807, 291345, 446729, 874035, 1340187, 2233645, 4020561, 6700935, 20102805]

約数ペア:

[(1, 20102805), (3, 6700935), (5, 4020561), (9, 2233645), (15, 1340187), (23, 874035), (45, 446729), (69, 291345), (115, 174807), (207, 97115), (345, 58269), (1035, 19423)]