20587568

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9257}}^1$

素因数の和:9404

約数の個数: 20

約数和(自身を含む): 40179720

約数和(自身を除く): 19592152

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9257, 18514, 37028, 74056, 148112, 1286723, 2573446, 5146892, 10293784, 20587568]

約数ペア:

[(1, 20587568), (2, 10293784), (4, 5146892), (8, 2573446), (16, 1286723), (139, 148112), (278, 74056), (556, 37028), (1112, 18514), (2224, 9257)]