20388555

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41189}}^1$

素因数の和:41211

約数の個数: 24

約数和(自身を含む): 38553840

約数和(自身を除く): 18165285

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 41189, 123567, 205945, 370701, 453079, 617835, 1359237, 1853505, 2265395, 4077711, 6796185, 20388555]

約数ペア:

[(1, 20388555), (3, 6796185), (5, 4077711), (9, 2265395), (11, 1853505), (15, 1359237), (33, 617835), (45, 453079), (55, 370701), (99, 205945), (165, 123567), (495, 41189)]