20498037

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^2$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 34578432

約数和(自身を除く): 14080395

約数列:

[1, 3, 7, 21, 23, 31, 37, 69, 93, 111, 161, 217, 259, 483, 651, 713, 777, 851, 1147, 1369, 2139, 2553, 3441, 4107, 4991, 5957, 8029, 9583, 14973, 17871, 24087, 26381, 28749, 31487, 42439, 79143, 94461, 127317, 184667, 220409, 297073, 554001, 661227, 891219, 976097, 2928291, 6832679, 20498037]

約数ペア:

[(1, 20498037), (3, 6832679), (7, 2928291), (21, 976097), (23, 891219), (31, 661227), (37, 554001), (69, 297073), (93, 220409), (111, 184667), (161, 127317), (217, 94461), (259, 79143), (483, 42439), (651, 31487), (713, 28749), (777, 26381), (851, 24087), (1147, 17871), (1369, 14973), (2139, 9583), (2553, 8029), (3441, 5957), (4107, 4991)]