21139562

素因数分解:

$2^1\times {\mathrm{107}}^1\times {\mathrm{173}}^1\times {\mathrm{571}}^1$

素因数の和:853

約数の個数: 16

約数和(自身を含む): 32247072

約数和(自身を除く): 11107510

約数列:

[1, 2, 107, 173, 214, 346, 571, 1142, 18511, 37022, 61097, 98783, 122194, 197566, 10569781, 21139562]

約数ペア:

[(1, 21139562), (2, 10569781), (107, 197566), (173, 122194), (214, 98783), (346, 61097), (571, 37022), (1142, 18511)]