16956920

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1901}}^1$

素因数の和:2135

約数の個数: 32

約数和(自身を含む): 38344320

約数和(自身を除く): 21387400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 1901, 2230, 3802, 4460, 7604, 8920, 9505, 15208, 19010, 38020, 76040, 423923, 847846, 1695692, 2119615, 3391384, 4239230, 8478460, 16956920]

約数ペア:

[(1, 16956920), (2, 8478460), (4, 4239230), (5, 3391384), (8, 2119615), (10, 1695692), (20, 847846), (40, 423923), (223, 76040), (446, 38020), (892, 19010), (1115, 15208), (1784, 9505), (1901, 8920), (2230, 7604), (3802, 4460)]