28991193

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{17929}}^1$

素因数の和:17957

約数の個数: 24

約数和(自身を含む): 49056480

約数和(自身を除く): 20065287

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 17929, 53787, 125503, 197219, 376509, 591657, 878521, 1380533, 2635563, 4141599, 9663731, 28991193]

約数ペア:

[(1, 28991193), (3, 9663731), (7, 4141599), (11, 2635563), (21, 1380533), (33, 878521), (49, 591657), (77, 376509), (147, 197219), (231, 125503), (539, 53787), (1617, 17929)]