19998641

素因数分解:

${\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{461}}^1$

素因数の和:592

約数の個数: 16

約数和(自身を含む): 22353408

約数和(自身を除く): 2354767

約数列:

[1, 13, 47, 71, 461, 611, 923, 3337, 5993, 21667, 32731, 43381, 281671, 425503, 1538357, 19998641]

約数ペア:

[(1, 19998641), (13, 1538357), (47, 425503), (71, 281671), (461, 43381), (611, 32731), (923, 21667), (3337, 5993)]