217872075

素因数分解:

$3^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{20899}}^1$

素因数の和:21051

約数の個数: 24

約数和(自身を含む): 362824000

約数和(自身を除く): 144951925

約数列:

[1, 3, 5, 15, 25, 75, 139, 417, 695, 2085, 3475, 10425, 20899, 62697, 104495, 313485, 522475, 1567425, 2904961, 8714883, 14524805, 43574415, 72624025, 217872075]

約数ペア:

[(1, 217872075), (3, 72624025), (5, 43574415), (15, 14524805), (25, 8714883), (75, 2904961), (139, 1567425), (417, 522475), (695, 313485), (2085, 104495), (3475, 62697), (10425, 20899)]