20803845

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1283}}^1$

素因数の和:1361

約数の個数: 32

約数和(自身を含む): 35500032

約数和(自身を除く): 14696187

約数列:

[1, 3, 5, 15, 23, 47, 69, 115, 141, 235, 345, 705, 1081, 1283, 3243, 3849, 5405, 6415, 16215, 19245, 29509, 60301, 88527, 147545, 180903, 301505, 442635, 904515, 1386923, 4160769, 6934615, 20803845]

約数ペア:

[(1, 20803845), (3, 6934615), (5, 4160769), (15, 1386923), (23, 904515), (47, 442635), (69, 301505), (115, 180903), (141, 147545), (235, 88527), (345, 60301), (705, 29509), (1081, 19245), (1283, 16215), (3243, 6415), (3849, 5405)]