21330645

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{3833}}^1$

素因数の和:3901

約数の個数: 32

約数和(自身を含む): 39750912

約数和(自身を除く): 18420267

約数列:

[1, 3, 5, 7, 15, 21, 35, 53, 105, 159, 265, 371, 795, 1113, 1855, 3833, 5565, 11499, 19165, 26831, 57495, 80493, 134155, 203149, 402465, 609447, 1015745, 1422043, 3047235, 4266129, 7110215, 21330645]

約数ペア:

[(1, 21330645), (3, 7110215), (5, 4266129), (7, 3047235), (15, 1422043), (21, 1015745), (35, 609447), (53, 402465), (105, 203149), (159, 134155), (265, 80493), (371, 57495), (795, 26831), (1113, 19165), (1855, 11499), (3833, 5565)]