21278376

素因数分解:

$2^3\times 3^4\times 7^1\times {\mathrm{4691}}^1$

素因数の和:4716

約数の個数: 80

約数和(自身を含む): 68127840

約数和(自身を除く): 46849464

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 81, 84, 108, 126, 162, 168, 189, 216, 252, 324, 378, 504, 567, 648, 756, 1134, 1512, 2268, 4536, 4691, 9382, 14073, 18764, 28146, 32837, 37528, 42219, 56292, 65674, 84438, 98511, 112584, 126657, 131348, 168876, 197022, 253314, 262696, 295533, 337752, 379971, 394044, 506628, 591066, 759942, 788088, 886599, 1013256, 1182132, 1519884, 1773198, 2364264, 2659797, 3039768, 3546396, 5319594, 7092792, 10639188, 21278376]

約数ペア:

[(1, 21278376), (2, 10639188), (3, 7092792), (4, 5319594), (6, 3546396), (7, 3039768), (8, 2659797), (9, 2364264), (12, 1773198), (14, 1519884), (18, 1182132), (21, 1013256), (24, 886599), (27, 788088), (28, 759942), (36, 591066), (42, 506628), (54, 394044), (56, 379971), (63, 337752), (72, 295533), (81, 262696), (84, 253314), (108, 197022), (126, 168876), (162, 131348), (168, 126657), (189, 112584), (216, 98511), (252, 84438), (324, 65674), (378, 56292), (504, 42219), (567, 37528), (648, 32837), (756, 28146), (1134, 18764), (1512, 14073), (2268, 9382), (4536, 4691)]