20021915

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{503}}^1$

素因数の和:946

約数の個数: 16

約数和(自身を含む): 25401600

約数和(自身を除く): 5379685

約数列:

[1, 5, 19, 95, 419, 503, 2095, 2515, 7961, 9557, 39805, 47785, 210757, 1053785, 4004383, 20021915]

約数ペア:

[(1, 20021915), (5, 4004383), (19, 1053785), (95, 210757), (419, 47785), (503, 39805), (2095, 9557), (2515, 7961)]