21016010

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72469}}^1$

素因数の和:72505

約数の個数: 16

約数和(自身を含む): 39133800

約数和(自身を除く): 18117790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72469, 144938, 362345, 724690, 2101601, 4203202, 10508005, 21016010]

約数ペア:

[(1, 21016010), (2, 10508005), (5, 4203202), (10, 2101601), (29, 724690), (58, 362345), (145, 144938), (290, 72469)]