20683509

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{229}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 38154240

約数和(自身を除く): 17470731

約数列:

[1, 3, 7, 11, 17, 21, 23, 33, 51, 69, 77, 119, 161, 187, 229, 231, 253, 357, 391, 483, 561, 687, 759, 1173, 1309, 1603, 1771, 2519, 2737, 3893, 3927, 4301, 4809, 5267, 5313, 7557, 8211, 11679, 12903, 15801, 17633, 27251, 30107, 36869, 42823, 52899, 57937, 81753, 89539, 90321, 110607, 128469, 173811, 268617, 299761, 405559, 626773, 899283, 984929, 1216677, 1880319, 2954787, 6894503, 20683509]

約数ペア:

[(1, 20683509), (3, 6894503), (7, 2954787), (11, 1880319), (17, 1216677), (21, 984929), (23, 899283), (33, 626773), (51, 405559), (69, 299761), (77, 268617), (119, 173811), (161, 128469), (187, 110607), (229, 90321), (231, 89539), (253, 81753), (357, 57937), (391, 52899), (483, 42823), (561, 36869), (687, 30107), (759, 27251), (1173, 17633), (1309, 15801), (1603, 12903), (1771, 11679), (2519, 8211), (2737, 7557), (3893, 5313), (3927, 5267), (4301, 4809)]