18586729

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1$

素因数の和:505

約数の個数: 24

約数和(自身を含む): 23380488

約数和(自身を除く): 4793759

約数列:

[1, 7, 17, 49, 53, 119, 371, 421, 833, 901, 2597, 2947, 6307, 7157, 20629, 22313, 44149, 50099, 156191, 350693, 379321, 1093337, 2655247, 18586729]

約数ペア:

[(1, 18586729), (7, 2655247), (17, 1093337), (49, 379321), (53, 350693), (119, 156191), (371, 50099), (421, 44149), (833, 22313), (901, 20629), (2597, 7157), (2947, 6307)]