19900786

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{1367}}^1$

素因数の和:1649

約数の個数: 16

約数和(自身を含む): 31026240

約数和(自身を除く): 11125454

約数列:

[1, 2, 29, 58, 251, 502, 1367, 2734, 7279, 14558, 39643, 79286, 343117, 686234, 9950393, 19900786]

約数ペア:

[(1, 19900786), (2, 9950393), (29, 686234), (58, 343117), (251, 79286), (502, 39643), (1367, 14558), (2734, 7279)]