21253366

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{8563}}^1$

素因数の和:8655

約数の個数: 16

約数和(自身を含む): 34221744

約数和(自身を除く): 12968378

約数列:

[1, 2, 17, 34, 73, 146, 1241, 2482, 8563, 17126, 145571, 291142, 625099, 1250198, 10626683, 21253366]

約数ペア:

[(1, 21253366), (2, 10626683), (17, 1250198), (34, 625099), (73, 291142), (146, 145571), (1241, 17126), (2482, 8563)]