21716856

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1$

素因数の和:346

約数の個数: 128

約数和(自身を含む): 70502400

約数和(自身を除く): 48785544

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 53, 54, 56, 63, 72, 84, 106, 108, 126, 159, 168, 189, 212, 216, 252, 271, 318, 371, 378, 424, 477, 504, 542, 636, 742, 756, 813, 954, 1084, 1113, 1272, 1431, 1484, 1512, 1626, 1897, 1908, 2168, 2226, 2439, 2862, 2968, 3252, 3339, 3794, 3816, 4452, 4878, 5691, 5724, 6504, 6678, 7317, 7588, 8904, 9756, 10017, 11382, 11448, 13356, 14363, 14634, 15176, 17073, 19512, 20034, 22764, 26712, 28726, 29268, 34146, 40068, 43089, 45528, 51219, 57452, 58536, 68292, 80136, 86178, 100541, 102438, 114904, 129267, 136584, 172356, 201082, 204876, 258534, 301623, 344712, 387801, 402164, 409752, 517068, 603246, 775602, 804328, 904869, 1034136, 1206492, 1551204, 1809738, 2412984, 2714607, 3102408, 3619476, 5429214, 7238952, 10858428, 21716856]

約数ペア:

[(1, 21716856), (2, 10858428), (3, 7238952), (4, 5429214), (6, 3619476), (7, 3102408), (8, 2714607), (9, 2412984), (12, 1809738), (14, 1551204), (18, 1206492), (21, 1034136), (24, 904869), (27, 804328), (28, 775602), (36, 603246), (42, 517068), (53, 409752), (54, 402164), (56, 387801), (63, 344712), (72, 301623), (84, 258534), (106, 204876), (108, 201082), (126, 172356), (159, 136584), (168, 129267), (189, 114904), (212, 102438), (216, 100541), (252, 86178), (271, 80136), (318, 68292), (371, 58536), (378, 57452), (424, 51219), (477, 45528), (504, 43089), (542, 40068), (636, 34146), (742, 29268), (756, 28726), (813, 26712), (954, 22764), (1084, 20034), (1113, 19512), (1272, 17073), (1431, 15176), (1484, 14634), (1512, 14363), (1626, 13356), (1897, 11448), (1908, 11382), (2168, 10017), (2226, 9756), (2439, 8904), (2862, 7588), (2968, 7317), (3252, 6678), (3339, 6504), (3794, 5724), (3816, 5691), (4452, 4878)]