20940135

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{431}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 13896345

約数列:

[1, 3, 5, 15, 41, 79, 123, 205, 237, 395, 431, 615, 1185, 1293, 2155, 3239, 6465, 9717, 16195, 17671, 34049, 48585, 53013, 88355, 102147, 170245, 265065, 510735, 1396009, 4188027, 6980045, 20940135]

約数ペア:

[(1, 20940135), (3, 6980045), (5, 4188027), (15, 1396009), (41, 510735), (79, 265065), (123, 170245), (205, 102147), (237, 88355), (395, 53013), (431, 48585), (615, 34049), (1185, 17671), (1293, 16195), (2155, 9717), (3239, 6465)]