21476181

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{761}}^1$

素因数の和:1196

約数の個数: 16

約数和(自身を含む): 29992320

約数和(自身を除く): 8516139

約数列:

[1, 3, 23, 69, 409, 761, 1227, 2283, 9407, 17503, 28221, 52509, 311249, 933747, 7158727, 21476181]

約数ペア:

[(1, 21476181), (3, 7158727), (23, 933747), (69, 311249), (409, 52509), (761, 28221), (1227, 17503), (2283, 9407)]