20213787

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{4111}}^1$

素因数の和:4274

約数の個数: 16

約数和(自身を含む): 29606400

約数和(自身を除く): 9392613

約数列:

[1, 3, 11, 33, 149, 447, 1639, 4111, 4917, 12333, 45221, 135663, 612539, 1837617, 6737929, 20213787]

約数ペア:

[(1, 20213787), (3, 6737929), (11, 1837617), (33, 612539), (149, 135663), (447, 45221), (1639, 12333), (4111, 4917)]