21487869

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2111}}^1$

素因数の和:2162

約数の個数: 32

約数和(自身を含む): 35481600

約数和(自身を除く): 13993731

約数列:

[1, 3, 9, 13, 27, 29, 39, 87, 117, 261, 351, 377, 783, 1131, 2111, 3393, 6333, 10179, 18999, 27443, 56997, 61219, 82329, 183657, 246987, 550971, 740961, 795847, 1652913, 2387541, 7162623, 21487869]

約数ペア:

[(1, 21487869), (3, 7162623), (9, 2387541), (13, 1652913), (27, 795847), (29, 740961), (39, 550971), (87, 246987), (117, 183657), (261, 82329), (351, 61219), (377, 56997), (783, 27443), (1131, 18999), (2111, 10179), (3393, 6333)]