19819161

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:455

約数の個数: 40

約数和(自身を含む): 32277960

約数和(自身を除く): 12458799

約数列:

[1, 3, 9, 17, 27, 37, 51, 81, 111, 153, 333, 389, 459, 629, 999, 1167, 1377, 1887, 2997, 3501, 5661, 6613, 10503, 14393, 16983, 19839, 31509, 43179, 50949, 59517, 129537, 178551, 244681, 388611, 535653, 734043, 1165833, 2202129, 6606387, 19819161]

約数ペア:

[(1, 19819161), (3, 6606387), (9, 2202129), (17, 1165833), (27, 734043), (37, 535653), (51, 388611), (81, 244681), (111, 178551), (153, 129537), (333, 59517), (389, 50949), (459, 43179), (629, 31509), (999, 19839), (1167, 16983), (1377, 14393), (1887, 10503), (2997, 6613), (3501, 5661)]