21163926

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{13619}}^1$

素因数の和:13668

約数の個数: 32

約数和(自身を含む): 49685760

約数和(自身を除く): 28521834

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 74, 111, 222, 259, 518, 777, 1554, 13619, 27238, 40857, 81714, 95333, 190666, 285999, 503903, 571998, 1007806, 1511709, 3023418, 3527321, 7054642, 10581963, 21163926]

約数ペア:

[(1, 21163926), (2, 10581963), (3, 7054642), (6, 3527321), (7, 3023418), (14, 1511709), (21, 1007806), (37, 571998), (42, 503903), (74, 285999), (111, 190666), (222, 95333), (259, 81714), (518, 40857), (777, 27238), (1554, 13619)]