21694959

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1873}}^1$

素因数の和:1909

約数の個数: 40

約数和(自身を含む): 38094672

約数和(自身を除く): 16399713

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 81, 99, 117, 143, 297, 351, 429, 891, 1053, 1287, 1873, 3861, 5619, 11583, 16857, 20603, 24349, 50571, 61809, 73047, 151713, 185427, 219141, 267839, 556281, 657423, 803517, 1668843, 1972269, 2410551, 7231653, 21694959]

約数ペア:

[(1, 21694959), (3, 7231653), (9, 2410551), (11, 1972269), (13, 1668843), (27, 803517), (33, 657423), (39, 556281), (81, 267839), (99, 219141), (117, 185427), (143, 151713), (297, 73047), (351, 61809), (429, 50571), (891, 24349), (1053, 20603), (1287, 16857), (1873, 11583), (3861, 5619)]