21258946

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{9833}}^1$

素因数の和:9905

約数の個数: 16

約数和(自身を含む): 33986304

約数和(自身を除く): 12727358

約数列:

[1, 2, 23, 46, 47, 94, 1081, 2162, 9833, 19666, 226159, 452318, 462151, 924302, 10629473, 21258946]

約数ペア:

[(1, 21258946), (2, 10629473), (23, 924302), (46, 462151), (47, 452318), (94, 226159), (1081, 19666), (2162, 9833)]