21953888

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1327}}^1$

素因数の和:1395

約数の個数: 48

約数和(自身を含む): 48190464

約数和(自身を除く): 26236576

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 47, 88, 94, 176, 188, 352, 376, 517, 752, 1034, 1327, 1504, 2068, 2654, 4136, 5308, 8272, 10616, 14597, 16544, 21232, 29194, 42464, 58388, 62369, 116776, 124738, 233552, 249476, 467104, 498952, 686059, 997904, 1372118, 1995808, 2744236, 5488472, 10976944, 21953888]

約数ペア:

[(1, 21953888), (2, 10976944), (4, 5488472), (8, 2744236), (11, 1995808), (16, 1372118), (22, 997904), (32, 686059), (44, 498952), (47, 467104), (88, 249476), (94, 233552), (176, 124738), (188, 116776), (352, 62369), (376, 58388), (517, 42464), (752, 29194), (1034, 21232), (1327, 16544), (1504, 14597), (2068, 10616), (2654, 8272), (4136, 5308)]