18393885

素因数分解:

$3^5\times 5^1\times {\mathrm{15139}}^1$

素因数の和:15159

約数の個数: 24

約数和(自身を含む): 33065760

約数和(自身を除く): 14671875

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 15139, 45417, 75695, 136251, 227085, 408753, 681255, 1226259, 2043765, 3678777, 6131295, 18393885]

約数ペア:

[(1, 18393885), (3, 6131295), (5, 3678777), (9, 2043765), (15, 1226259), (27, 681255), (45, 408753), (81, 227085), (135, 136251), (243, 75695), (405, 45417), (1215, 15139)]