21277635

素因数分解:

$3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{19979}}^1$

素因数の和:20058

約数の個数: 16

約数和(自身を含む): 34525440

約数和(自身を除く): 13247805

約数列:

[1, 3, 5, 15, 71, 213, 355, 1065, 19979, 59937, 99895, 299685, 1418509, 4255527, 7092545, 21277635]

約数ペア:

[(1, 21277635), (3, 7092545), (5, 4255527), (15, 1418509), (71, 299685), (213, 99895), (355, 59937), (1065, 19979)]