21696498

素因数分解:

$2^1\times 3^6\times {\mathrm{23}}^1\times {\mathrm{647}}^1$

素因数の和:690

約数の個数: 56

約数和(自身を含む): 50995008

約数和(自身を除く): 29298510

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 81, 138, 162, 207, 243, 414, 486, 621, 647, 729, 1242, 1294, 1458, 1863, 1941, 3726, 3882, 5589, 5823, 11178, 11646, 14881, 16767, 17469, 29762, 33534, 34938, 44643, 52407, 89286, 104814, 133929, 157221, 267858, 314442, 401787, 471663, 803574, 943326, 1205361, 2410722, 3616083, 7232166, 10848249, 21696498]

約数ペア:

[(1, 21696498), (2, 10848249), (3, 7232166), (6, 3616083), (9, 2410722), (18, 1205361), (23, 943326), (27, 803574), (46, 471663), (54, 401787), (69, 314442), (81, 267858), (138, 157221), (162, 133929), (207, 104814), (243, 89286), (414, 52407), (486, 44643), (621, 34938), (647, 33534), (729, 29762), (1242, 17469), (1294, 16767), (1458, 14881), (1863, 11646), (1941, 11178), (3726, 5823), (3882, 5589)]