18760815

素因数分解:

$3^6\times 5^1\times {\mathrm{5147}}^1$

素因数の和:5170

約数の個数: 28

約数和(自身を含む): 33760584

約数和(自身を除く): 14999769

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 3645, 5147, 15441, 25735, 46323, 77205, 138969, 231615, 416907, 694845, 1250721, 2084535, 3752163, 6253605, 18760815]

約数ペア:

[(1, 18760815), (3, 6253605), (5, 3752163), (9, 2084535), (15, 1250721), (27, 694845), (45, 416907), (81, 231615), (135, 138969), (243, 77205), (405, 46323), (729, 25735), (1215, 15441), (3645, 5147)]