20972810

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{44623}}^1$

素因数の和:44677

約数の個数: 16

約数和(自身を含む): 38555136

約数和(自身を除く): 17582326

約数列:

[1, 2, 5, 10, 47, 94, 235, 470, 44623, 89246, 223115, 446230, 2097281, 4194562, 10486405, 20972810]

約数ペア:

[(1, 20972810), (2, 10486405), (5, 4194562), (10, 2097281), (47, 446230), (94, 223115), (235, 89246), (470, 44623)]