19861808

素因数分解:

$2^4\times {\mathrm{487}}^1\times {\mathrm{2549}}^1$

素因数の和:3044

約数の個数: 20

約数和(自身を含む): 38576400

約数和(自身を除く): 18714592

約数列:

[1, 2, 4, 8, 16, 487, 974, 1948, 2549, 3896, 5098, 7792, 10196, 20392, 40784, 1241363, 2482726, 4965452, 9930904, 19861808]

約数ペア:

[(1, 19861808), (2, 9930904), (4, 4965452), (8, 2482726), (16, 1241363), (487, 40784), (974, 20392), (1948, 10196), (2549, 7792), (3896, 5098)]