21534505

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{419}}^1\times {\mathrm{541}}^1$

素因数の和:984

約数の個数: 16

約数和(自身を含む): 27316800

約数和(自身を除く): 5782295

約数列:

[1, 5, 19, 95, 419, 541, 2095, 2705, 7961, 10279, 39805, 51395, 226679, 1133395, 4306901, 21534505]

約数ペア:

[(1, 21534505), (5, 4306901), (19, 1133395), (95, 226679), (419, 51395), (541, 39805), (2095, 10279), (2705, 7961)]