21755556

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{16333}}^1$

素因数の和:16380

約数の個数: 36

約数和(自身を含む): 56482972

約数和(自身を除く): 34727416

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 111, 148, 222, 333, 444, 666, 1332, 16333, 32666, 48999, 65332, 97998, 146997, 195996, 293994, 587988, 604321, 1208642, 1812963, 2417284, 3625926, 5438889, 7251852, 10877778, 21755556]

約数ペア:

[(1, 21755556), (2, 10877778), (3, 7251852), (4, 5438889), (6, 3625926), (9, 2417284), (12, 1812963), (18, 1208642), (36, 604321), (37, 587988), (74, 293994), (111, 195996), (148, 146997), (222, 97998), (333, 65332), (444, 48999), (666, 32666), (1332, 16333)]