217440315

素因数分解:

$3^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{5179}}^1$

素因数の和:5504

約数の個数: 32

約数和(自身を含む): 387878400

約数和(自身を除く): 170438085

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 311, 933, 1555, 2799, 4665, 5179, 8397, 13995, 15537, 25895, 41985, 46611, 77685, 139833, 233055, 699165, 1610669, 4832007, 8053345, 14496021, 24160035, 43488063, 72480105, 217440315]

約数ペア:

[(1, 217440315), (3, 72480105), (5, 43488063), (9, 24160035), (15, 14496021), (27, 8053345), (45, 4832007), (135, 1610669), (311, 699165), (933, 233055), (1555, 139833), (2799, 77685), (4665, 46611), (5179, 41985), (8397, 25895), (13995, 15537)]