21145712

素因数分解:

$2^4\times 7^1\times {\mathrm{188801}}^1$

素因数の和:188816

約数の個数: 20

約数和(自身を含む): 46822896

約数和(自身を除く): 25677184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 188801, 377602, 755204, 1321607, 1510408, 2643214, 3020816, 5286428, 10572856, 21145712]

約数ペア:

[(1, 21145712), (2, 10572856), (4, 5286428), (7, 3020816), (8, 2643214), (14, 1510408), (16, 1321607), (28, 755204), (56, 377602), (112, 188801)]