21426432

素因数分解:

$2^8\times 3^1\times {\mathrm{23}}^1\times {\mathrm{1213}}^1$

素因数の和:1255

約数の個数: 72

約数和(自身を含む): 59553984

約数和(自身を除く): 38127552

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 32, 46, 48, 64, 69, 92, 96, 128, 138, 184, 192, 256, 276, 368, 384, 552, 736, 768, 1104, 1213, 1472, 2208, 2426, 2944, 3639, 4416, 4852, 5888, 7278, 8832, 9704, 14556, 17664, 19408, 27899, 29112, 38816, 55798, 58224, 77632, 83697, 111596, 116448, 155264, 167394, 223192, 232896, 310528, 334788, 446384, 465792, 669576, 892768, 931584, 1339152, 1785536, 2678304, 3571072, 5356608, 7142144, 10713216, 21426432]

約数ペア:

[(1, 21426432), (2, 10713216), (3, 7142144), (4, 5356608), (6, 3571072), (8, 2678304), (12, 1785536), (16, 1339152), (23, 931584), (24, 892768), (32, 669576), (46, 465792), (48, 446384), (64, 334788), (69, 310528), (92, 232896), (96, 223192), (128, 167394), (138, 155264), (184, 116448), (192, 111596), (256, 83697), (276, 77632), (368, 58224), (384, 55798), (552, 38816), (736, 29112), (768, 27899), (1104, 19408), (1213, 17664), (1472, 14556), (2208, 9704), (2426, 8832), (2944, 7278), (3639, 5888), (4416, 4852)]