21608876

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{1721}}^1$

素因数の和:1841

約数の個数: 24

約数和(自身を含む): 39247824

約数和(自身を除く): 17638948

約数列:

[1, 2, 4, 43, 73, 86, 146, 172, 292, 1721, 3139, 3442, 6278, 6884, 12556, 74003, 125633, 148006, 251266, 296012, 502532, 5402219, 10804438, 21608876]

約数ペア:

[(1, 21608876), (2, 10804438), (4, 5402219), (43, 502532), (73, 296012), (86, 251266), (146, 148006), (172, 125633), (292, 74003), (1721, 12556), (3139, 6884), (3442, 6278)]