19531390

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{27509}}^1$

素因数の和:27587

約数の個数: 16

約数和(自身を含む): 35652960

約数和(自身を除く): 16121570

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 27509, 55018, 137545, 275090, 1953139, 3906278, 9765695, 19531390]

約数ペア:

[(1, 19531390), (2, 9765695), (5, 3906278), (10, 1953139), (71, 275090), (142, 137545), (355, 55018), (710, 27509)]