19739728

素因数分解:

$2^4\times {\mathrm{263}}^1\times {\mathrm{4691}}^1$

素因数の和:4962

約数の個数: 20

約数和(自身を含む): 38399328

約数和(自身を除く): 18659600

約数列:

[1, 2, 4, 8, 16, 263, 526, 1052, 2104, 4208, 4691, 9382, 18764, 37528, 75056, 1233733, 2467466, 4934932, 9869864, 19739728]

約数ペア:

[(1, 19739728), (2, 9869864), (4, 4934932), (8, 2467466), (16, 1233733), (263, 75056), (526, 37528), (1052, 18764), (2104, 9382), (4208, 4691)]