16980165

素因数分解:

$3^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1723}}^1$

素因数の和:1810

約数の個数: 32

約数和(自身を含む): 30618240

約数和(自身を除く): 13638075

約数列:

[1, 3, 5, 9, 15, 27, 45, 73, 135, 219, 365, 657, 1095, 1723, 1971, 3285, 5169, 8615, 9855, 15507, 25845, 46521, 77535, 125779, 232605, 377337, 628895, 1132011, 1886685, 3396033, 5660055, 16980165]

約数ペア:

[(1, 16980165), (3, 5660055), (5, 3396033), (9, 1886685), (15, 1132011), (27, 628895), (45, 377337), (73, 232605), (135, 125779), (219, 77535), (365, 46521), (657, 25845), (1095, 15507), (1723, 9855), (1971, 8615), (3285, 5169)]