19991582

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{9733}}^1$

素因数の和:9827

約数の個数: 16

約数和(自身を含む): 32706240

約数和(自身を除く): 12714658

約数列:

[1, 2, 13, 26, 79, 158, 1027, 2054, 9733, 19466, 126529, 253058, 768907, 1537814, 9995791, 19991582]

約数ペア:

[(1, 19991582), (2, 9995791), (13, 1537814), (26, 768907), (79, 253058), (158, 126529), (1027, 19466), (2054, 9733)]