20172779721

素因数分解:

$3^2\times {\mathrm{419}}^1\times {\mathrm{5349451}}^1$

素因数の和:5349876

約数の個数: 12

約数和(自身を含む): 29208007920

約数和(自身を除く): 9035228199

約数列:

[1, 3, 9, 419, 1257, 3771, 5349451, 16048353, 48145059, 2241419969, 6724259907, 20172779721]

約数ペア:

[(1, 20172779721), (3, 6724259907), (9, 2241419969), (419, 48145059), (1257, 16048353), (3771, 5349451)]