21208866

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{72139}}^1$

素因数の和:72158

約数の個数: 24

約数和(自身を含む): 49343760

約数和(自身を除く): 28134894

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 294, 72139, 144278, 216417, 432834, 504973, 1009946, 1514919, 3029838, 3534811, 7069622, 10604433, 21208866]

約数ペア:

[(1, 21208866), (2, 10604433), (3, 7069622), (6, 3534811), (7, 3029838), (14, 1514919), (21, 1009946), (42, 504973), (49, 432834), (98, 216417), (147, 144278), (294, 72139)]