21173313

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{467}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 34504704

約数和(自身を除く): 13331391

約数列:

[1, 3, 7, 17, 21, 51, 119, 127, 357, 381, 467, 889, 1401, 2159, 2667, 3269, 6477, 7939, 9807, 15113, 23817, 45339, 55573, 59309, 166719, 177927, 415163, 1008253, 1245489, 3024759, 7057771, 21173313]

約数ペア:

[(1, 21173313), (3, 7057771), (7, 3024759), (17, 1245489), (21, 1008253), (51, 415163), (119, 177927), (127, 166719), (357, 59309), (381, 55573), (467, 45339), (889, 23817), (1401, 15113), (2159, 9807), (2667, 7939), (3269, 6477)]