19893555

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{40189}}^1$

素因数の和:40211

約数の個数: 24

約数和(自身を含む): 37617840

約数和(自身を除く): 17724285

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 40189, 120567, 200945, 361701, 442079, 602835, 1326237, 1808505, 2210395, 3978711, 6631185, 19893555]

約数ペア:

[(1, 19893555), (3, 6631185), (5, 3978711), (9, 2210395), (11, 1808505), (15, 1326237), (33, 602835), (45, 442079), (55, 361701), (99, 200945), (165, 120567), (495, 40189)]