21861021

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{80077}}^1$

素因数の和:80100

約数の個数: 16

約数和(自身を含む): 35874944

約数和(自身を除く): 14013923

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 80077, 240231, 560539, 1041001, 1681617, 3123003, 7287007, 21861021]

約数ペア:

[(1, 21861021), (3, 7287007), (7, 3123003), (13, 1681617), (21, 1041001), (39, 560539), (91, 240231), (273, 80077)]