21682328

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{283}}^1$

素因数の和:507

約数の個数: 32

約数和(自身を含む): 41730960

約数和(自身を除く): 20048632

約数列:

[1, 2, 4, 8, 61, 122, 157, 244, 283, 314, 488, 566, 628, 1132, 1256, 2264, 9577, 17263, 19154, 34526, 38308, 44431, 69052, 76616, 88862, 138104, 177724, 355448, 2710291, 5420582, 10841164, 21682328]

約数ペア:

[(1, 21682328), (2, 10841164), (4, 5420582), (8, 2710291), (61, 355448), (122, 177724), (157, 138104), (244, 88862), (283, 76616), (314, 69052), (488, 44431), (566, 38308), (628, 34526), (1132, 19154), (1256, 17263), (2264, 9577)]