20817135

素因数分解:

$3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3761}}^1$

素因数の和:3816

約数の個数: 32

約数和(自身を含む): 37920960

約数和(自身を除く): 17103825

約数列:

[1, 3, 5, 9, 15, 27, 41, 45, 123, 135, 205, 369, 615, 1107, 1845, 3761, 5535, 11283, 18805, 33849, 56415, 101547, 154201, 169245, 462603, 507735, 771005, 1387809, 2313015, 4163427, 6939045, 20817135]

約数ペア:

[(1, 20817135), (3, 6939045), (5, 4163427), (9, 2313015), (15, 1387809), (27, 771005), (41, 507735), (45, 462603), (123, 169245), (135, 154201), (205, 101547), (369, 56415), (615, 33849), (1107, 18805), (1845, 11283), (3761, 5535)]