19935806

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12763}}^1$

素因数の和:12847

約数の個数: 16

約数和(自身を含む): 33084288

約数和(自身を除く): 13148482

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 12763, 25526, 140393, 280786, 906173, 1812346, 9967903, 19935806]

約数ペア:

[(1, 19935806), (2, 9967903), (11, 1812346), (22, 906173), (71, 280786), (142, 140393), (781, 25526), (1562, 12763)]