21431536

素因数分解:

$2^4\times 7^1\times {\mathrm{191353}}^1$

素因数の和:191368

約数の個数: 20

約数和(自身を含む): 47455792

約数和(自身を除く): 26024256

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 191353, 382706, 765412, 1339471, 1530824, 2678942, 3061648, 5357884, 10715768, 21431536]

約数ペア:

[(1, 21431536), (2, 10715768), (4, 5357884), (7, 3061648), (8, 2678942), (14, 1530824), (16, 1339471), (28, 765412), (56, 382706), (112, 191353)]