18015831

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{433}}^1$

素因数の和:532

約数の個数: 32

約数和(自身を含む): 28331520

約数和(自身を除く): 10315689

約数列:

[1, 3, 9, 23, 27, 67, 69, 201, 207, 433, 603, 621, 1299, 1541, 1809, 3897, 4623, 9959, 11691, 13869, 29011, 29877, 41607, 87033, 89631, 261099, 268893, 667253, 783297, 2001759, 6005277, 18015831]

約数ペア:

[(1, 18015831), (3, 6005277), (9, 2001759), (23, 783297), (27, 667253), (67, 268893), (69, 261099), (201, 89631), (207, 87033), (433, 41607), (603, 29877), (621, 29011), (1299, 13869), (1541, 11691), (1809, 9959), (3897, 4623)]