19807568

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{112543}}^1$

素因数の和:112562

約数の個数: 20

約数和(自身を含む): 41866368

約数和(自身を除く): 22058800

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 112543, 225086, 450172, 900344, 1237973, 1800688, 2475946, 4951892, 9903784, 19807568]

約数ペア:

[(1, 19807568), (2, 9903784), (4, 4951892), (8, 2475946), (11, 1800688), (16, 1237973), (22, 900344), (44, 450172), (88, 225086), (176, 112543)]