21220716

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{373}}^1\times {\mathrm{431}}^1$

素因数の和:822

約数の個数: 48

約数和(自身を含む): 54286848

約数和(自身を除く): 33066132

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 373, 431, 746, 862, 1119, 1293, 1492, 1724, 2238, 2586, 4103, 4476, 4741, 5172, 8206, 9482, 12309, 14223, 16412, 18964, 24618, 28446, 49236, 56892, 160763, 321526, 482289, 643052, 964578, 1768393, 1929156, 3536786, 5305179, 7073572, 10610358, 21220716]

約数ペア:

[(1, 21220716), (2, 10610358), (3, 7073572), (4, 5305179), (6, 3536786), (11, 1929156), (12, 1768393), (22, 964578), (33, 643052), (44, 482289), (66, 321526), (132, 160763), (373, 56892), (431, 49236), (746, 28446), (862, 24618), (1119, 18964), (1293, 16412), (1492, 14223), (1724, 12309), (2238, 9482), (2586, 8206), (4103, 5172), (4476, 4741)]