21029904

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{673}}^1$

素因数の和:725

約数の個数: 120

約数和(自身を含む): 69535232

約数和(自身を除く): 48505328

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 31, 36, 42, 48, 56, 62, 63, 72, 84, 93, 112, 124, 126, 144, 168, 186, 217, 248, 252, 279, 336, 372, 434, 496, 504, 558, 651, 673, 744, 868, 1008, 1116, 1302, 1346, 1488, 1736, 1953, 2019, 2232, 2604, 2692, 3472, 3906, 4038, 4464, 4711, 5208, 5384, 6057, 7812, 8076, 9422, 10416, 10768, 12114, 14133, 15624, 16152, 18844, 20863, 24228, 28266, 31248, 32304, 37688, 41726, 42399, 48456, 56532, 62589, 75376, 83452, 84798, 96912, 113064, 125178, 146041, 166904, 169596, 187767, 226128, 250356, 292082, 333808, 339192, 375534, 438123, 500712, 584164, 678384, 751068, 876246, 1001424, 1168328, 1314369, 1502136, 1752492, 2336656, 2628738, 3004272, 3504984, 5257476, 7009968, 10514952, 21029904]

約数ペア:

[(1, 21029904), (2, 10514952), (3, 7009968), (4, 5257476), (6, 3504984), (7, 3004272), (8, 2628738), (9, 2336656), (12, 1752492), (14, 1502136), (16, 1314369), (18, 1168328), (21, 1001424), (24, 876246), (28, 751068), (31, 678384), (36, 584164), (42, 500712), (48, 438123), (56, 375534), (62, 339192), (63, 333808), (72, 292082), (84, 250356), (93, 226128), (112, 187767), (124, 169596), (126, 166904), (144, 146041), (168, 125178), (186, 113064), (217, 96912), (248, 84798), (252, 83452), (279, 75376), (336, 62589), (372, 56532), (434, 48456), (496, 42399), (504, 41726), (558, 37688), (651, 32304), (673, 31248), (744, 28266), (868, 24228), (1008, 20863), (1116, 18844), (1302, 16152), (1346, 15624), (1488, 14133), (1736, 12114), (1953, 10768), (2019, 10416), (2232, 9422), (2604, 8076), (2692, 7812), (3472, 6057), (3906, 5384), (4038, 5208), (4464, 4711)]