19205613

素因数分解:

$3^3\times 7^1\times {\mathrm{307}}^1\times {\mathrm{331}}^1$

素因数の和:654

約数の個数: 32

約数和(自身を含む): 32721920

約数和(自身を除く): 13516307

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 307, 331, 921, 993, 2149, 2317, 2763, 2979, 6447, 6951, 8289, 8937, 19341, 20853, 58023, 62559, 101617, 304851, 711319, 914553, 2133957, 2743659, 6401871, 19205613]

約数ペア:

[(1, 19205613), (3, 6401871), (7, 2743659), (9, 2133957), (21, 914553), (27, 711319), (63, 304851), (189, 101617), (307, 62559), (331, 58023), (921, 20853), (993, 19341), (2149, 8937), (2317, 8289), (2763, 6951), (2979, 6447)]