20889609

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{2339}}^1$

素因数の和:2584

約数の個数: 16

約数和(自身を含む): 30139200

約数和(自身を除く): 9249591

約数列:

[1, 3, 13, 39, 229, 687, 2339, 2977, 7017, 8931, 30407, 91221, 535631, 1606893, 6963203, 20889609]

約数ペア:

[(1, 20889609), (3, 6963203), (13, 1606893), (39, 535631), (229, 91221), (687, 30407), (2339, 8931), (2977, 7017)]