21348669

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 10170051

約数列:

[1, 3, 23, 29, 47, 69, 87, 141, 227, 667, 681, 1081, 1363, 2001, 3243, 4089, 5221, 6583, 10669, 15663, 19749, 31349, 32007, 94047, 151409, 245387, 309401, 454227, 736161, 928203, 7116223, 21348669]

約数ペア:

[(1, 21348669), (3, 7116223), (23, 928203), (29, 736161), (47, 454227), (69, 309401), (87, 245387), (141, 151409), (227, 94047), (667, 32007), (681, 31349), (1081, 19749), (1363, 15663), (2001, 10669), (3243, 6583), (4089, 5221)]