20271568

素因数分解:

$2^4\times {\mathrm{389}}^1\times {\mathrm{3257}}^1$

素因数の和:3654

約数の個数: 20

約数和(自身を含む): 39389220

約数和(自身を除く): 19117652

約数列:

[1, 2, 4, 8, 16, 389, 778, 1556, 3112, 3257, 6224, 6514, 13028, 26056, 52112, 1266973, 2533946, 5067892, 10135784, 20271568]

約数ペア:

[(1, 20271568), (2, 10135784), (4, 5067892), (8, 2533946), (16, 1266973), (389, 52112), (778, 26056), (1556, 13028), (3112, 6514), (3257, 6224)]