20443527

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 33965568

約数和(自身を除く): 13522041

約数列:

[1, 3, 9, 13, 23, 39, 69, 71, 107, 117, 207, 213, 299, 321, 639, 897, 923, 963, 1391, 1633, 2461, 2691, 2769, 4173, 4899, 7383, 7597, 8307, 12519, 14697, 21229, 22149, 22791, 31993, 63687, 68373, 95979, 98761, 174731, 191061, 287937, 296283, 524193, 888849, 1572579, 2271503, 6814509, 20443527]

約数ペア:

[(1, 20443527), (3, 6814509), (9, 2271503), (13, 1572579), (23, 888849), (39, 524193), (69, 296283), (71, 287937), (107, 191061), (117, 174731), (207, 98761), (213, 95979), (299, 68373), (321, 63687), (639, 31993), (897, 22791), (923, 22149), (963, 21229), (1391, 14697), (1633, 12519), (2461, 8307), (2691, 7597), (2769, 7383), (4173, 4899)]