21365487

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{1277}}^1$

素因数の和:1320

約数の個数: 36

約数和(自身を含む): 36484344

約数和(自身を除く): 15118857

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 169, 429, 507, 1277, 1287, 1521, 1859, 3831, 5577, 11493, 14047, 16601, 16731, 42141, 49803, 126423, 149409, 182611, 215813, 547833, 647439, 1643499, 1942317, 2373943, 7121829, 21365487]

約数ペア:

[(1, 21365487), (3, 7121829), (9, 2373943), (11, 1942317), (13, 1643499), (33, 647439), (39, 547833), (99, 215813), (117, 182611), (143, 149409), (169, 126423), (429, 49803), (507, 42141), (1277, 16731), (1287, 16601), (1521, 14047), (1859, 11493), (3831, 5577)]