20879391

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{18461}}^1$

素因数の和:18506

約数の個数: 16

約数和(自身を含む): 31016160

約数和(自身を除く): 10136769

約数列:

[1, 3, 13, 29, 39, 87, 377, 1131, 18461, 55383, 239993, 535369, 719979, 1606107, 6959797, 20879391]

約数ペア:

[(1, 20879391), (3, 6959797), (13, 1606107), (29, 719979), (39, 535369), (87, 239993), (377, 55383), (1131, 18461)]