21290534

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1\times {\mathrm{769}}^1$

素因数の和:1007

約数の個数: 16

約数和(自身を含む): 32524800

約数和(自身を除く): 11234266

約数列:

[1, 2, 109, 127, 218, 254, 769, 1538, 13843, 27686, 83821, 97663, 167642, 195326, 10645267, 21290534]

約数ペア:

[(1, 21290534), (2, 10645267), (109, 195326), (127, 167642), (218, 97663), (254, 83821), (769, 27686), (1538, 13843)]