18638984

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{25603}}^1$

素因数の和:25629

約数の個数: 32

約数和(自身を含む): 43014720

約数和(自身を除く): 24375736

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 25603, 51206, 102412, 179221, 204824, 332839, 358442, 665678, 716884, 1331356, 1433768, 2329873, 2662712, 4659746, 9319492, 18638984]

約数ペア:

[(1, 18638984), (2, 9319492), (4, 4659746), (7, 2662712), (8, 2329873), (13, 1433768), (14, 1331356), (26, 716884), (28, 665678), (52, 358442), (56, 332839), (91, 204824), (104, 179221), (182, 102412), (364, 51206), (728, 25603)]