21000929488

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{98533}}^1$

素因数の和:98732

約数の個数: 80

約数和(自身を含む): 51023270016

約数和(自身を除く): 30022340528

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 173, 176, 308, 346, 616, 692, 1211, 1232, 1384, 1903, 2422, 2768, 3806, 4844, 7612, 9688, 13321, 15224, 19376, 26642, 30448, 53284, 98533, 106568, 197066, 213136, 394132, 689731, 788264, 1083863, 1379462, 1576528, 2167726, 2758924, 4335452, 5517848, 7587041, 8670904, 11035696, 15174082, 17046209, 17341808, 30348164, 34092418, 60696328, 68184836, 119323463, 121392656, 136369672, 187508299, 238646926, 272739344, 375016598, 477293852, 750033196, 954587704, 1312558093, 1500066392, 1909175408, 2625116186, 3000132784, 5250232372, 10500464744, 21000929488]

約数ペア:

[(1, 21000929488), (2, 10500464744), (4, 5250232372), (7, 3000132784), (8, 2625116186), (11, 1909175408), (14, 1500066392), (16, 1312558093), (22, 954587704), (28, 750033196), (44, 477293852), (56, 375016598), (77, 272739344), (88, 238646926), (112, 187508299), (154, 136369672), (173, 121392656), (176, 119323463), (308, 68184836), (346, 60696328), (616, 34092418), (692, 30348164), (1211, 17341808), (1232, 17046209), (1384, 15174082), (1903, 11035696), (2422, 8670904), (2768, 7587041), (3806, 5517848), (4844, 4335452), (7612, 2758924), (9688, 2167726), (13321, 1576528), (15224, 1379462), (19376, 1083863), (26642, 788264), (30448, 689731), (53284, 394132), (98533, 213136), (106568, 197066)]