19947512

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{191803}}^1$

素因数の和:191822

約数の個数: 16

約数和(自身を含む): 40278840

約数和(自身を除く): 20331328

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 191803, 383606, 767212, 1534424, 2493439, 4986878, 9973756, 19947512]

約数ペア:

[(1, 19947512), (2, 9973756), (4, 4986878), (8, 2493439), (13, 1534424), (26, 767212), (52, 383606), (104, 191803)]