21617865

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{11717}}^1$

素因数の和:11769

約数の個数: 24

約数和(自身を含む): 38388168

約数和(自身を除く): 16770303

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1845, 11717, 35151, 58585, 105453, 175755, 480397, 527265, 1441191, 2401985, 4323573, 7205955, 21617865]

約数ペア:

[(1, 21617865), (3, 7205955), (5, 4323573), (9, 2401985), (15, 1441191), (41, 527265), (45, 480397), (123, 175755), (205, 105453), (369, 58585), (615, 35151), (1845, 11717)]