20188707

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:188

約数の個数: 64

約数和(自身を含む): 36578304

約数和(自身を除く): 16389597

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 53, 77, 97, 119, 159, 187, 231, 291, 357, 371, 561, 583, 679, 901, 1067, 1113, 1309, 1649, 1749, 2037, 2703, 3201, 3927, 4081, 4947, 5141, 6307, 7469, 9911, 11543, 12243, 15423, 18139, 18921, 22407, 29733, 34629, 35987, 54417, 56551, 69377, 87397, 107961, 126973, 169653, 208131, 262191, 380919, 395857, 611779, 961367, 1187571, 1835337, 2884101, 6729569, 20188707]

約数ペア:

[(1, 20188707), (3, 6729569), (7, 2884101), (11, 1835337), (17, 1187571), (21, 961367), (33, 611779), (51, 395857), (53, 380919), (77, 262191), (97, 208131), (119, 169653), (159, 126973), (187, 107961), (231, 87397), (291, 69377), (357, 56551), (371, 54417), (561, 35987), (583, 34629), (679, 29733), (901, 22407), (1067, 18921), (1113, 18139), (1309, 15423), (1649, 12243), (1749, 11543), (2037, 9911), (2703, 7469), (3201, 6307), (3927, 5141), (4081, 4947)]