21062997

素因数分解:

$3^7\times {\mathrm{9631}}^1$

素因数の和:9652

約数の個数: 16

約数和(自身を含む): 31592960

約数和(自身を除く): 10529963

約数列:

[1, 3, 9, 27, 81, 243, 729, 2187, 9631, 28893, 86679, 260037, 780111, 2340333, 7020999, 21062997]

約数ペア:

[(1, 21062997), (3, 7020999), (9, 2340333), (27, 780111), (81, 260037), (243, 86679), (729, 28893), (2187, 9631)]