20495205

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23971}}^1$

素因数の和:24001

約数の個数: 24

約数和(自身を含む): 37396320

約数和(自身を除く): 16901115

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 23971, 71913, 119855, 215739, 359565, 455449, 1078695, 1366347, 2277245, 4099041, 6831735, 20495205]

約数ペア:

[(1, 20495205), (3, 6831735), (5, 4099041), (9, 2277245), (15, 1366347), (19, 1078695), (45, 455449), (57, 359565), (95, 215739), (171, 119855), (285, 71913), (855, 23971)]