19991565

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{40387}}^1$

素因数の和:40409

約数の個数: 24

約数和(自身を含む): 37803168

約数和(自身を除く): 17811603

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 165, 495, 40387, 121161, 201935, 363483, 444257, 605805, 1332771, 1817415, 2221285, 3998313, 6663855, 19991565]

約数ペア:

[(1, 19991565), (3, 6663855), (5, 3998313), (9, 2221285), (11, 1817415), (15, 1332771), (33, 605805), (45, 444257), (55, 363483), (99, 201935), (165, 121161), (495, 40387)]