19967428

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{13241}}^1$

素因数の和:13287

約数の個数: 24

約数和(自身を含む): 38931480

約数和(自身を除く): 18964052

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 116, 377, 754, 1508, 13241, 26482, 52964, 172133, 344266, 383989, 688532, 767978, 1535956, 4991857, 9983714, 19967428]

約数ペア:

[(1, 19967428), (2, 9983714), (4, 4991857), (13, 1535956), (26, 767978), (29, 688532), (52, 383989), (58, 344266), (116, 172133), (377, 52964), (754, 26482), (1508, 13241)]