18969567

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 8609313

約数列:

[1, 3, 29, 37, 71, 83, 87, 111, 213, 249, 1073, 2059, 2407, 2627, 3071, 3219, 5893, 6177, 7221, 7881, 9213, 17679, 76183, 89059, 170897, 218041, 228549, 267177, 512691, 654123, 6323189, 18969567]

約数ペア:

[(1, 18969567), (3, 6323189), (29, 654123), (37, 512691), (71, 267177), (83, 228549), (87, 218041), (111, 170897), (213, 89059), (249, 76183), (1073, 17679), (2059, 9213), (2407, 7881), (2627, 7221), (3071, 6177), (3219, 5893)]