21866679

素因数分解:

$3^4\times {\mathrm{499}}^1\times {\mathrm{541}}^1$

素因数の和:1052

約数の個数: 20

約数和(自身を含む): 32791000

約数和(自身を除く): 10924321

約数列:

[1, 3, 9, 27, 81, 499, 541, 1497, 1623, 4491, 4869, 13473, 14607, 40419, 43821, 269959, 809877, 2429631, 7288893, 21866679]

約数ペア:

[(1, 21866679), (3, 7288893), (9, 2429631), (27, 809877), (81, 269959), (499, 43821), (541, 40419), (1497, 14607), (1623, 13473), (4491, 4869)]