21513072

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1489}}^1$

素因数の和:1550

約数の個数: 80

約数和(自身を含む): 65035520

約数和(自身を除く): 43522448

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 43, 48, 56, 84, 86, 112, 129, 168, 172, 258, 301, 336, 344, 516, 602, 688, 903, 1032, 1204, 1489, 1806, 2064, 2408, 2978, 3612, 4467, 4816, 5956, 7224, 8934, 10423, 11912, 14448, 17868, 20846, 23824, 31269, 35736, 41692, 62538, 64027, 71472, 83384, 125076, 128054, 166768, 192081, 250152, 256108, 384162, 448189, 500304, 512216, 768324, 896378, 1024432, 1344567, 1536648, 1792756, 2689134, 3073296, 3585512, 5378268, 7171024, 10756536, 21513072]

約数ペア:

[(1, 21513072), (2, 10756536), (3, 7171024), (4, 5378268), (6, 3585512), (7, 3073296), (8, 2689134), (12, 1792756), (14, 1536648), (16, 1344567), (21, 1024432), (24, 896378), (28, 768324), (42, 512216), (43, 500304), (48, 448189), (56, 384162), (84, 256108), (86, 250152), (112, 192081), (129, 166768), (168, 128054), (172, 125076), (258, 83384), (301, 71472), (336, 64027), (344, 62538), (516, 41692), (602, 35736), (688, 31269), (903, 23824), (1032, 20846), (1204, 17868), (1489, 14448), (1806, 11912), (2064, 10423), (2408, 8934), (2978, 7224), (3612, 5956), (4467, 4816)]