21359056

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28403}}^1$

素因数の和:28458

約数の個数: 20

約数和(自身を含む): 42265152

約数和(自身を除く): 20906096

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28403, 56806, 113612, 227224, 454448, 1334941, 2669882, 5339764, 10679528, 21359056]

約数ペア:

[(1, 21359056), (2, 10679528), (4, 5339764), (8, 2669882), (16, 1334941), (47, 454448), (94, 227224), (188, 113612), (376, 56806), (752, 28403)]