21000478532

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{391537}}^1$

素因数の和:391628

約数の個数: 48

約数和(自身を含む): 42624392832

約数和(自身を除く): 21623914300

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 53, 92, 106, 212, 253, 506, 583, 1012, 1166, 1219, 2332, 2438, 4876, 13409, 26818, 53636, 391537, 783074, 1566148, 4306907, 8613814, 9005351, 17227628, 18010702, 20751461, 36021404, 41502922, 83005844, 99058861, 198117722, 228266071, 396235444, 456532142, 477283603, 913064284, 954567206, 1909134412, 5250119633, 10500239266, 21000478532]

約数ペア:

[(1, 21000478532), (2, 10500239266), (4, 5250119633), (11, 1909134412), (22, 954567206), (23, 913064284), (44, 477283603), (46, 456532142), (53, 396235444), (92, 228266071), (106, 198117722), (212, 99058861), (253, 83005844), (506, 41502922), (583, 36021404), (1012, 20751461), (1166, 18010702), (1219, 17227628), (2332, 9005351), (2438, 8613814), (4876, 4306907), (13409, 1566148), (26818, 783074), (53636, 391537)]