31222845

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{311}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 57238272

約数和(自身を除く): 26015427

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 97, 115, 207, 291, 311, 345, 485, 873, 933, 1035, 1455, 1555, 2231, 2799, 4365, 4665, 6693, 7153, 11155, 13995, 20079, 21459, 30167, 33465, 35765, 64377, 90501, 100395, 107295, 150835, 271503, 321885, 452505, 693841, 1357515, 2081523, 3469205, 6244569, 10407615, 31222845]

約数ペア:

[(1, 31222845), (3, 10407615), (5, 6244569), (9, 3469205), (15, 2081523), (23, 1357515), (45, 693841), (69, 452505), (97, 321885), (115, 271503), (207, 150835), (291, 107295), (311, 100395), (345, 90501), (485, 64377), (873, 35765), (933, 33465), (1035, 30167), (1455, 21459), (1555, 20079), (2231, 13995), (2799, 11155), (4365, 7153), (4665, 6693)]