18890047

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:187

約数の個数: 24

約数和(自身を含む): 22384512

約数和(自身を除く): 3494465

約数列:

[1, 11, 19, 67, 71, 209, 361, 737, 781, 1273, 1349, 3971, 4757, 14003, 14839, 24187, 25631, 52327, 90383, 266057, 281941, 994213, 1717277, 18890047]

約数ペア:

[(1, 18890047), (11, 1717277), (19, 994213), (67, 281941), (71, 266057), (209, 90383), (361, 52327), (737, 25631), (781, 24187), (1273, 14839), (1349, 14003), (3971, 4757)]