19681784

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{144719}}^1$

素因数の和:144742

約数の個数: 16

約数和(自身を含む): 39074400

約数和(自身を除く): 19392616

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 144719, 289438, 578876, 1157752, 2460223, 4920446, 9840892, 19681784]

約数ペア:

[(1, 19681784), (2, 9840892), (4, 4920446), (8, 2460223), (17, 1157752), (34, 578876), (68, 289438), (136, 144719)]