19668909

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{1861}}^1$

素因数の和:2148

約数の個数: 16

約数和(自身を含む): 28361984

約数和(自身を除く): 8693075

約数列:

[1, 3, 13, 39, 271, 813, 1861, 3523, 5583, 10569, 24193, 72579, 504331, 1512993, 6556303, 19668909]

約数ペア:

[(1, 19668909), (3, 6556303), (13, 1512993), (39, 504331), (271, 72579), (813, 24193), (1861, 10569), (3523, 5583)]