21705624

素因数分解:

$2^3\times 3^3\times {\mathrm{317}}^2$

素因数の和:649

約数の個数: 48

約数和(自身を含む): 60484200

約数和(自身を除く): 38778576

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 317, 634, 951, 1268, 1902, 2536, 2853, 3804, 5706, 7608, 8559, 11412, 17118, 22824, 34236, 68472, 100489, 200978, 301467, 401956, 602934, 803912, 904401, 1205868, 1808802, 2411736, 2713203, 3617604, 5426406, 7235208, 10852812, 21705624]

約数ペア:

[(1, 21705624), (2, 10852812), (3, 7235208), (4, 5426406), (6, 3617604), (8, 2713203), (9, 2411736), (12, 1808802), (18, 1205868), (24, 904401), (27, 803912), (36, 602934), (54, 401956), (72, 301467), (108, 200978), (216, 100489), (317, 68472), (634, 34236), (951, 22824), (1268, 17118), (1902, 11412), (2536, 8559), (2853, 7608), (3804, 5706)]