21700272

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{563}}^1$

素因数の和:658

約数の個数: 80

約数和(自身を含む): 62103168

約数和(自身を除く): 40402896

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 73, 88, 132, 146, 176, 219, 264, 292, 438, 528, 563, 584, 803, 876, 1126, 1168, 1606, 1689, 1752, 2252, 2409, 3212, 3378, 3504, 4504, 4818, 6193, 6424, 6756, 9008, 9636, 12386, 12848, 13512, 18579, 19272, 24772, 27024, 37158, 38544, 41099, 49544, 74316, 82198, 99088, 123297, 148632, 164396, 246594, 297264, 328792, 452089, 493188, 657584, 904178, 986376, 1356267, 1808356, 1972752, 2712534, 3616712, 5425068, 7233424, 10850136, 21700272]

約数ペア:

[(1, 21700272), (2, 10850136), (3, 7233424), (4, 5425068), (6, 3616712), (8, 2712534), (11, 1972752), (12, 1808356), (16, 1356267), (22, 986376), (24, 904178), (33, 657584), (44, 493188), (48, 452089), (66, 328792), (73, 297264), (88, 246594), (132, 164396), (146, 148632), (176, 123297), (219, 99088), (264, 82198), (292, 74316), (438, 49544), (528, 41099), (563, 38544), (584, 37158), (803, 27024), (876, 24772), (1126, 19272), (1168, 18579), (1606, 13512), (1689, 12848), (1752, 12386), (2252, 9636), (2409, 9008), (3212, 6756), (3378, 6424), (3504, 6193), (4504, 4818)]