161720211

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{983}}^1$

素因数の和:1107

約数の個数: 32

約数和(自身を含む): 234270720

約数和(自身を除く): 72550509

約数列:

[1, 3, 29, 31, 61, 87, 93, 183, 899, 983, 1769, 1891, 2697, 2949, 5307, 5673, 28507, 30473, 54839, 59963, 85521, 91419, 164517, 179889, 883717, 1738927, 1858853, 2651151, 5216781, 5576559, 53906737, 161720211]

約数ペア:

[(1, 161720211), (3, 53906737), (29, 5576559), (31, 5216781), (61, 2651151), (87, 1858853), (93, 1738927), (183, 883717), (899, 179889), (983, 164517), (1769, 91419), (1891, 85521), (2697, 59963), (2949, 54839), (5307, 30473), (5673, 28507)]