21508474

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{12347}}^1$

素因数の和:12429

約数の個数: 16

約数和(自身を含む): 35265888

約数和(自身を除く): 13757414

約数列:

[1, 2, 13, 26, 67, 134, 871, 1742, 12347, 24694, 160511, 321022, 827249, 1654498, 10754237, 21508474]

約数ペア:

[(1, 21508474), (2, 10754237), (13, 1654498), (26, 827249), (67, 321022), (134, 160511), (871, 24694), (1742, 12347)]