221460498

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{257}}^1\times {\mathrm{977}}^1$

素因数の和:1256

約数の個数: 72

約数和(自身を含む): 560916252

約数和(自身を除く): 339455754

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 49, 63, 98, 126, 147, 257, 294, 441, 514, 771, 882, 977, 1542, 1799, 1954, 2313, 2931, 3598, 4626, 5397, 5862, 6839, 8793, 10794, 12593, 13678, 16191, 17586, 20517, 25186, 32382, 37779, 41034, 47873, 61551, 75558, 95746, 113337, 123102, 143619, 226674, 251089, 287238, 430857, 502178, 753267, 861714, 1506534, 1757623, 2259801, 3515246, 4519602, 5272869, 10545738, 12303361, 15818607, 24606722, 31637214, 36910083, 73820166, 110730249, 221460498]

約数ペア:

[(1, 221460498), (2, 110730249), (3, 73820166), (6, 36910083), (7, 31637214), (9, 24606722), (14, 15818607), (18, 12303361), (21, 10545738), (42, 5272869), (49, 4519602), (63, 3515246), (98, 2259801), (126, 1757623), (147, 1506534), (257, 861714), (294, 753267), (441, 502178), (514, 430857), (771, 287238), (882, 251089), (977, 226674), (1542, 143619), (1799, 123102), (1954, 113337), (2313, 95746), (2931, 75558), (3598, 61551), (4626, 47873), (5397, 41034), (5862, 37779), (6839, 32382), (8793, 25186), (10794, 20517), (12593, 17586), (13678, 16191)]