21310653

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{311}}^1$

素因数の和:585

約数の個数: 32

約数和(自身を含む): 35223552

約数和(自身を除く): 13912899

約数列:

[1, 3, 7, 13, 21, 39, 91, 251, 273, 311, 753, 933, 1757, 2177, 3263, 4043, 5271, 6531, 9789, 12129, 22841, 28301, 68523, 78061, 84903, 234183, 546427, 1014793, 1639281, 3044379, 7103551, 21310653]

約数ペア:

[(1, 21310653), (3, 7103551), (7, 3044379), (13, 1639281), (21, 1014793), (39, 546427), (91, 234183), (251, 84903), (273, 78061), (311, 68523), (753, 28301), (933, 22841), (1757, 12129), (2177, 9789), (3263, 6531), (4043, 5271)]