20504638

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{827}}^1$

素因数の和:877

約数の個数: 48

約数和(自身を含む): 40777344

約数和(自身を除く): 20272706

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 49, 77, 98, 154, 161, 253, 322, 506, 539, 827, 1078, 1127, 1654, 1771, 2254, 3542, 5789, 9097, 11578, 12397, 18194, 19021, 24794, 38042, 40523, 63679, 81046, 127358, 133147, 209231, 266294, 418462, 445753, 891506, 932029, 1464617, 1864058, 2929234, 10252319, 20504638]

約数ペア:

[(1, 20504638), (2, 10252319), (7, 2929234), (11, 1864058), (14, 1464617), (22, 932029), (23, 891506), (46, 445753), (49, 418462), (77, 266294), (98, 209231), (154, 133147), (161, 127358), (253, 81046), (322, 63679), (506, 40523), (539, 38042), (827, 24794), (1078, 19021), (1127, 18194), (1654, 12397), (1771, 11578), (2254, 9097), (3542, 5789)]