20281215

素因数分解:

$3^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{13127}}^1$

素因数の和:13238

約数の個数: 16

約数和(自身を含む): 32767488

約数和(自身を除く): 12486273

約数列:

[1, 3, 5, 15, 103, 309, 515, 1545, 13127, 39381, 65635, 196905, 1352081, 4056243, 6760405, 20281215]

約数ペア:

[(1, 20281215), (3, 6760405), (5, 4056243), (15, 1352081), (103, 196905), (309, 65635), (515, 39381), (1545, 13127)]