21716508

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{311}}^1$

素因数の和:375

約数の個数: 72

約数和(自身を含む): 57972096

約数和(自身を除く): 36255588

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 23, 33, 44, 46, 66, 69, 92, 132, 138, 253, 276, 311, 506, 529, 622, 759, 933, 1012, 1058, 1244, 1518, 1587, 1866, 2116, 3036, 3174, 3421, 3732, 5819, 6348, 6842, 7153, 10263, 11638, 13684, 14306, 17457, 20526, 21459, 23276, 28612, 34914, 41052, 42918, 69828, 78683, 85836, 157366, 164519, 236049, 314732, 329038, 472098, 493557, 658076, 944196, 987114, 1809709, 1974228, 3619418, 5429127, 7238836, 10858254, 21716508]

約数ペア:

[(1, 21716508), (2, 10858254), (3, 7238836), (4, 5429127), (6, 3619418), (11, 1974228), (12, 1809709), (22, 987114), (23, 944196), (33, 658076), (44, 493557), (46, 472098), (66, 329038), (69, 314732), (92, 236049), (132, 164519), (138, 157366), (253, 85836), (276, 78683), (311, 69828), (506, 42918), (529, 41052), (622, 34914), (759, 28612), (933, 23276), (1012, 21459), (1058, 20526), (1244, 17457), (1518, 14306), (1587, 13684), (1866, 11638), (2116, 10263), (3036, 7153), (3174, 6842), (3421, 6348), (3732, 5819)]