21116115

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{15137}}^1$

素因数の和:15179

約数の個数: 24

約数和(自身を含む): 37784448

約数和(自身を除く): 16668333

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 15137, 45411, 75685, 136233, 227055, 469247, 681165, 1407741, 2346235, 4223223, 7038705, 21116115]

約数ペア:

[(1, 21116115), (3, 7038705), (5, 4223223), (9, 2346235), (15, 1407741), (31, 681165), (45, 469247), (93, 227055), (155, 136233), (279, 75685), (465, 45411), (1395, 15137)]