20847442

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{233}}^1$

素因数の和:343

約数の個数: 48

約数和(自身を含む): 40334112

約数和(自身を除く): 19486670

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 83, 98, 154, 166, 233, 466, 539, 581, 913, 1078, 1162, 1631, 1826, 2563, 3262, 4067, 5126, 6391, 8134, 11417, 12782, 17941, 19339, 22834, 35882, 38678, 44737, 89474, 125587, 135373, 212729, 251174, 270746, 425458, 947611, 1489103, 1895222, 2978206, 10423721, 20847442]

約数ペア:

[(1, 20847442), (2, 10423721), (7, 2978206), (11, 1895222), (14, 1489103), (22, 947611), (49, 425458), (77, 270746), (83, 251174), (98, 212729), (154, 135373), (166, 125587), (233, 89474), (466, 44737), (539, 38678), (581, 35882), (913, 22834), (1078, 19339), (1162, 17941), (1631, 12782), (1826, 11417), (2563, 8134), (3262, 6391), (4067, 5126)]