21309772

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{919}}^1$

素因数の和:982

約数の個数: 48

約数和(自身を含む): 44513280

約数和(自身を除く): 23203508

約数列:

[1, 2, 4, 11, 17, 22, 31, 34, 44, 62, 68, 124, 187, 341, 374, 527, 682, 748, 919, 1054, 1364, 1838, 2108, 3676, 5797, 10109, 11594, 15623, 20218, 23188, 28489, 31246, 40436, 56978, 62492, 113956, 171853, 313379, 343706, 484313, 626758, 687412, 968626, 1253516, 1937252, 5327443, 10654886, 21309772]

約数ペア:

[(1, 21309772), (2, 10654886), (4, 5327443), (11, 1937252), (17, 1253516), (22, 968626), (31, 687412), (34, 626758), (44, 484313), (62, 343706), (68, 313379), (124, 171853), (187, 113956), (341, 62492), (374, 56978), (527, 40436), (682, 31246), (748, 28489), (919, 23188), (1054, 20218), (1364, 15623), (1838, 11594), (2108, 10109), (3676, 5797)]