19728196

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{419}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 35280000

約数和(自身を除く): 15551804

約数列:

[1, 2, 4, 79, 149, 158, 298, 316, 419, 596, 838, 1676, 11771, 23542, 33101, 47084, 62431, 66202, 124862, 132404, 249724, 4932049, 9864098, 19728196]

約数ペア:

[(1, 19728196), (2, 9864098), (4, 4932049), (79, 249724), (149, 132404), (158, 124862), (298, 66202), (316, 62431), (419, 47084), (596, 33101), (838, 23542), (1676, 11771)]