19128555

素因数分解:

$3^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{647}}^1$

素因数の和:737

約数の個数: 40

約数和(自身を含む): 34813152

約数和(自身を除く): 15684597

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 81, 135, 219, 365, 405, 647, 657, 1095, 1941, 1971, 3235, 3285, 5823, 5913, 9705, 9855, 17469, 29115, 29565, 47231, 52407, 87345, 141693, 236155, 262035, 425079, 708465, 1275237, 2125395, 3825711, 6376185, 19128555]

約数ペア:

[(1, 19128555), (3, 6376185), (5, 3825711), (9, 2125395), (15, 1275237), (27, 708465), (45, 425079), (73, 262035), (81, 236155), (135, 141693), (219, 87345), (365, 52407), (405, 47231), (647, 29565), (657, 29115), (1095, 17469), (1941, 9855), (1971, 9705), (3235, 5913), (3285, 5823)]