216221621

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{90583}}^1$

素因数の和:90632

約数の個数: 16

約数和(自身を含む): 278274048

約数和(自身を除く): 62052427

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 90583, 634081, 996413, 2808073, 6974891, 19656511, 30888803, 216221621]

約数ペア:

[(1, 216221621), (7, 30888803), (11, 19656511), (31, 6974891), (77, 2808073), (217, 996413), (341, 634081), (2387, 90583)]