163940021

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1\times {\mathrm{6247}}^1$

素因数の和:6440

約数の個数: 16

約数和(自身を含む): 196737024

約数和(自身を除く): 32797003

約数列:

[1, 7, 23, 161, 163, 1141, 3749, 6247, 26243, 43729, 143681, 1005767, 1018261, 7127827, 23420003, 163940021]

約数ペア:

[(1, 163940021), (7, 23420003), (23, 7127827), (161, 1018261), (163, 1005767), (1141, 143681), (3749, 43729), (6247, 26243)]