221519155

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{359}}^1\times {\mathrm{863}}^1$

素因数の和:1251

約数の個数: 32

約数和(自身を含む): 313528320

約数和(自身を除く): 92009165

約数列:

[1, 5, 11, 13, 55, 65, 143, 359, 715, 863, 1795, 3949, 4315, 4667, 9493, 11219, 19745, 23335, 47465, 51337, 56095, 123409, 256685, 309817, 617045, 1549085, 3407987, 4027621, 17039935, 20138105, 44303831, 221519155]

約数ペア:

[(1, 221519155), (5, 44303831), (11, 20138105), (13, 17039935), (55, 4027621), (65, 3407987), (143, 1549085), (359, 617045), (715, 309817), (863, 256685), (1795, 123409), (3949, 56095), (4315, 51337), (4667, 47465), (9493, 23335), (11219, 19745)]