21799346

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{109}}^1\times {\mathrm{277}}^1$

素因数の和:426

約数の個数: 24

約数和(自身を含む): 34952940

約数和(自身を除く): 13153594

約数列:

[1, 2, 19, 38, 109, 218, 277, 361, 554, 722, 2071, 4142, 5263, 10526, 30193, 39349, 60386, 78698, 99997, 199994, 573667, 1147334, 10899673, 21799346]

約数ペア:

[(1, 21799346), (2, 10899673), (19, 1147334), (38, 573667), (109, 199994), (218, 99997), (277, 78698), (361, 60386), (554, 39349), (722, 30193), (2071, 10526), (4142, 5263)]