19813456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{95257}}^1$

素因数の和:95278

約数の個数: 20

約数和(自身を含む): 41341972

約数和(自身を除く): 21528516

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 95257, 190514, 381028, 762056, 1238341, 1524112, 2476682, 4953364, 9906728, 19813456]

約数ペア:

[(1, 19813456), (2, 9906728), (4, 4953364), (8, 2476682), (13, 1524112), (16, 1238341), (26, 762056), (52, 381028), (104, 190514), (208, 95257)]