20290347

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1$

素因数の和:133

約数の個数: 96

約数和(自身を含む): 40734720

約数和(自身を除く): 20444373

約数列:

[1, 3, 7, 9, 11, 19, 21, 23, 33, 57, 63, 67, 69, 77, 99, 133, 161, 171, 201, 207, 209, 231, 253, 399, 437, 469, 483, 603, 627, 693, 737, 759, 1197, 1273, 1311, 1407, 1449, 1463, 1541, 1771, 1881, 2211, 2277, 3059, 3819, 3933, 4221, 4389, 4623, 4807, 5159, 5313, 6633, 8911, 9177, 10787, 11457, 13167, 13869, 14003, 14421, 15477, 15939, 16951, 26733, 27531, 29279, 32361, 33649, 42009, 43263, 46431, 50853, 80199, 87837, 97083, 98021, 100947, 118657, 126027, 152559, 204953, 263511, 294063, 302841, 322069, 355971, 614859, 882189, 966207, 1067913, 1844577, 2254483, 2898621, 6763449, 20290347]

約数ペア:

[(1, 20290347), (3, 6763449), (7, 2898621), (9, 2254483), (11, 1844577), (19, 1067913), (21, 966207), (23, 882189), (33, 614859), (57, 355971), (63, 322069), (67, 302841), (69, 294063), (77, 263511), (99, 204953), (133, 152559), (161, 126027), (171, 118657), (201, 100947), (207, 98021), (209, 97083), (231, 87837), (253, 80199), (399, 50853), (437, 46431), (469, 43263), (483, 42009), (603, 33649), (627, 32361), (693, 29279), (737, 27531), (759, 26733), (1197, 16951), (1273, 15939), (1311, 15477), (1407, 14421), (1449, 14003), (1463, 13869), (1541, 13167), (1771, 11457), (1881, 10787), (2211, 9177), (2277, 8911), (3059, 6633), (3819, 5313), (3933, 5159), (4221, 4807), (4389, 4623)]