20288787

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{811}}^1$

素因数の和:1114

約数の個数: 16

約数和(自身を含む): 28062720

約数和(自身を除く): 7773933

約数列:

[1, 3, 31, 93, 269, 807, 811, 2433, 8339, 25017, 25141, 75423, 218159, 654477, 6762929, 20288787]

約数ペア:

[(1, 20288787), (3, 6762929), (31, 654477), (93, 218159), (269, 75423), (807, 25141), (811, 25017), (2433, 8339)]