18717993

素因数分解:

$3^3\times 7^1\times {\mathrm{97}}^1\times {\mathrm{1021}}^1$

素因数の和:1134

約数の個数: 32

約数和(自身を含む): 32049920

約数和(自身を除く): 13331927

約数列:

[1, 3, 7, 9, 21, 27, 63, 97, 189, 291, 679, 873, 1021, 2037, 2619, 3063, 6111, 7147, 9189, 18333, 21441, 27567, 64323, 99037, 192969, 297111, 693259, 891333, 2079777, 2673999, 6239331, 18717993]

約数ペア:

[(1, 18717993), (3, 6239331), (7, 2673999), (9, 2079777), (21, 891333), (27, 693259), (63, 297111), (97, 192969), (189, 99037), (291, 64323), (679, 27567), (873, 21441), (1021, 18333), (2037, 9189), (2619, 7147), (3063, 6111)]