21361395

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3499}}^1$

素因数の和:3555

約数の個数: 32

約数和(自身を含む): 38304000

約数和(自身を除く): 16942605

約数列:

[1, 3, 5, 11, 15, 33, 37, 55, 111, 165, 185, 407, 555, 1221, 2035, 3499, 6105, 10497, 17495, 38489, 52485, 115467, 129463, 192445, 388389, 577335, 647315, 1424093, 1941945, 4272279, 7120465, 21361395]

約数ペア:

[(1, 21361395), (3, 7120465), (5, 4272279), (11, 1941945), (15, 1424093), (33, 647315), (37, 577335), (55, 388389), (111, 192445), (165, 129463), (185, 115467), (407, 52485), (555, 38489), (1221, 17495), (2035, 10497), (3499, 6105)]