18956889

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5279}}^1$

素因数の和:5314

約数の個数: 32

約数和(自身を含む): 33792000

約数和(自身を除く): 14835111

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 399, 513, 1197, 3591, 5279, 15837, 36953, 47511, 100301, 110859, 142533, 300903, 332577, 702107, 902709, 997731, 2106321, 2708127, 6318963, 18956889]

約数ペア:

[(1, 18956889), (3, 6318963), (7, 2708127), (9, 2106321), (19, 997731), (21, 902709), (27, 702107), (57, 332577), (63, 300903), (133, 142533), (171, 110859), (189, 100301), (399, 47511), (513, 36953), (1197, 15837), (3591, 5279)]