21962215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{283}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 30917376

約数和(自身を除く): 8955161

約数列:

[1, 5, 11, 17, 55, 83, 85, 187, 283, 415, 913, 935, 1411, 1415, 3113, 4565, 4811, 7055, 15521, 15565, 23489, 24055, 52921, 77605, 117445, 258379, 264605, 399313, 1291895, 1996565, 4392443, 21962215]

約数ペア:

[(1, 21962215), (5, 4392443), (11, 1996565), (17, 1291895), (55, 399313), (83, 264605), (85, 258379), (187, 117445), (283, 77605), (415, 52921), (913, 24055), (935, 23489), (1411, 15565), (1415, 15521), (3113, 7055), (4565, 4811)]