21407277

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{149}}^1\times {\mathrm{577}}^1$

素因数の和:812

約数の個数: 16

約数和(自身を含む): 29131200

約数和(自身を除く): 7723923

約数列:

[1, 3, 83, 149, 249, 447, 577, 1731, 12367, 37101, 47891, 85973, 143673, 257919, 7135759, 21407277]

約数ペア:

[(1, 21407277), (3, 7135759), (83, 257919), (149, 143673), (249, 85973), (447, 47891), (577, 37101), (1731, 12367)]