19997654

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1\times {\mathrm{929}}^1$

素因数の和:1207

約数の個数: 16

約数和(自身を含む): 30801600

約数和(自身を除く): 10803946

約数列:

[1, 2, 47, 94, 229, 458, 929, 1858, 10763, 21526, 43663, 87326, 212741, 425482, 9998827, 19997654]

約数ペア:

[(1, 19997654), (2, 9998827), (47, 425482), (94, 212741), (229, 87326), (458, 43663), (929, 21526), (1858, 10763)]