21757212

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{487}}^1$

素因数の和:587

約数の個数: 72

約数和(自身を含む): 59151456

約数和(自身を除く): 37394244

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 73, 102, 146, 153, 204, 219, 292, 306, 438, 487, 612, 657, 876, 974, 1241, 1314, 1461, 1948, 2482, 2628, 2922, 3723, 4383, 4964, 5844, 7446, 8279, 8766, 11169, 14892, 16558, 17532, 22338, 24837, 33116, 35551, 44676, 49674, 71102, 74511, 99348, 106653, 142204, 149022, 213306, 298044, 319959, 426612, 604367, 639918, 1208734, 1279836, 1813101, 2417468, 3626202, 5439303, 7252404, 10878606, 21757212]

約数ペア:

[(1, 21757212), (2, 10878606), (3, 7252404), (4, 5439303), (6, 3626202), (9, 2417468), (12, 1813101), (17, 1279836), (18, 1208734), (34, 639918), (36, 604367), (51, 426612), (68, 319959), (73, 298044), (102, 213306), (146, 149022), (153, 142204), (204, 106653), (219, 99348), (292, 74511), (306, 71102), (438, 49674), (487, 44676), (612, 35551), (657, 33116), (876, 24837), (974, 22338), (1241, 17532), (1314, 16558), (1461, 14892), (1948, 11169), (2482, 8766), (2628, 8279), (2922, 7446), (3723, 5844), (4383, 4964)]