21000298506

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{396247}}^1$

素因数の和:396347

約数の個数: 48

約数和(自身を含む): 46798473792

約数和(自身を除く): 25798175286

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 73, 121, 146, 219, 242, 363, 438, 726, 803, 1606, 2409, 4818, 8833, 17666, 26499, 52998, 396247, 792494, 1188741, 2377482, 4358717, 8717434, 13076151, 26152302, 28926031, 47945887, 57852062, 86778093, 95891774, 143837661, 173556186, 287675322, 318186341, 636372682, 954559023, 1909118046, 3500049751, 7000099502, 10500149253, 21000298506]

約数ペア:

[(1, 21000298506), (2, 10500149253), (3, 7000099502), (6, 3500049751), (11, 1909118046), (22, 954559023), (33, 636372682), (66, 318186341), (73, 287675322), (121, 173556186), (146, 143837661), (219, 95891774), (242, 86778093), (363, 57852062), (438, 47945887), (726, 28926031), (803, 26152302), (1606, 13076151), (2409, 8717434), (4818, 4358717), (8833, 2377482), (17666, 1188741), (26499, 792494), (52998, 396247)]