16940745

素因数分解:

$3^5\times 5^1\times {\mathrm{73}}^1\times {\mathrm{191}}^1$

素因数の和:284

約数の個数: 48

約数和(自身を含む): 31030272

約数和(自身を除く): 14089527

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 81, 135, 191, 219, 243, 365, 405, 573, 657, 955, 1095, 1215, 1719, 1971, 2865, 3285, 5157, 5913, 8595, 9855, 13943, 15471, 17739, 25785, 29565, 41829, 46413, 69715, 77355, 88695, 125487, 209145, 232065, 376461, 627435, 1129383, 1882305, 3388149, 5646915, 16940745]

約数ペア:

[(1, 16940745), (3, 5646915), (5, 3388149), (9, 1882305), (15, 1129383), (27, 627435), (45, 376461), (73, 232065), (81, 209145), (135, 125487), (191, 88695), (219, 77355), (243, 69715), (365, 46413), (405, 41829), (573, 29565), (657, 25785), (955, 17739), (1095, 15471), (1215, 13943), (1719, 9855), (1971, 8595), (2865, 5913), (3285, 5157)]