20147407

素因数分解:

$7^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1$

素因数の和:438

約数の個数: 16

約数和(自身を含む): 23519232

約数和(自身を除く): 3371825

約数列:

[1, 7, 127, 131, 173, 889, 917, 1211, 16637, 21971, 22663, 116459, 153797, 158641, 2878201, 20147407]

約数ペア:

[(1, 20147407), (7, 2878201), (127, 158641), (131, 153797), (173, 116459), (889, 22663), (917, 21971), (1211, 16637)]