21653492

素因数分解:

$2^2\times 7^2\times {\mathrm{110477}}^1$

素因数の和:110495

約数の個数: 18

約数和(自身を含む): 44080722

約数和(自身を除く): 22427230

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 110477, 220954, 441908, 773339, 1546678, 3093356, 5413373, 10826746, 21653492]

約数ペア:

[(1, 21653492), (2, 10826746), (4, 5413373), (7, 3093356), (14, 1546678), (28, 773339), (49, 441908), (98, 220954), (196, 110477)]