20064471

素因数分解:

$3^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:109

約数の個数: 64

約数和(自身を含む): 35020800

約数和(自身を除く): 14956329

約数列:

[1, 3, 7, 17, 21, 31, 37, 49, 51, 93, 111, 119, 147, 217, 259, 343, 357, 527, 629, 651, 777, 833, 1029, 1147, 1519, 1581, 1813, 1887, 2499, 3441, 3689, 4403, 4557, 5439, 5831, 8029, 10633, 11067, 12691, 13209, 17493, 19499, 24087, 25823, 30821, 31899, 38073, 56203, 58497, 77469, 92463, 136493, 168609, 180761, 215747, 393421, 409479, 542283, 647241, 955451, 1180263, 2866353, 6688157, 20064471]

約数ペア:

[(1, 20064471), (3, 6688157), (7, 2866353), (17, 1180263), (21, 955451), (31, 647241), (37, 542283), (49, 409479), (51, 393421), (93, 215747), (111, 180761), (119, 168609), (147, 136493), (217, 92463), (259, 77469), (343, 58497), (357, 56203), (527, 38073), (629, 31899), (651, 30821), (777, 25823), (833, 24087), (1029, 19499), (1147, 17493), (1519, 13209), (1581, 12691), (1813, 11067), (1887, 10633), (2499, 8029), (3441, 5831), (3689, 5439), (4403, 4557)]