217255155

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{65537}}^1$

素因数の和:65575

約数の個数: 32

約数和(自身を含む): 396373824

約数和(自身を除く): 179118669

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 65537, 196611, 327685, 851981, 983055, 1114129, 2555943, 3342387, 4259905, 5570645, 12779715, 14483677, 16711935, 43451031, 72418385, 217255155]

約数ペア:

[(1, 217255155), (3, 72418385), (5, 43451031), (13, 16711935), (15, 14483677), (17, 12779715), (39, 5570645), (51, 4259905), (65, 3342387), (85, 2555943), (195, 1114129), (221, 983055), (255, 851981), (663, 327685), (1105, 196611), (3315, 65537)]