20109465

素因数分解:

$3^8\times 5^1\times {\mathrm{613}}^1$

素因数の和:642

約数の個数: 36

約数和(自身を含む): 36254244

約数和(自身を除く): 16144779

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 613, 729, 1215, 1839, 2187, 3065, 3645, 5517, 6561, 9195, 10935, 16551, 27585, 32805, 49653, 82755, 148959, 248265, 446877, 744795, 1340631, 2234385, 4021893, 6703155, 20109465]

約数ペア:

[(1, 20109465), (3, 6703155), (5, 4021893), (9, 2234385), (15, 1340631), (27, 744795), (45, 446877), (81, 248265), (135, 148959), (243, 82755), (405, 49653), (613, 32805), (729, 27585), (1215, 16551), (1839, 10935), (2187, 9195), (3065, 6561), (3645, 5517)]