19919852

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{1487}}^1$

素因数の和:1705

約数の個数: 24

約数和(自身を含む): 37122624

約数和(自身を除く): 17202772

約数列:

[1, 2, 4, 17, 34, 68, 197, 394, 788, 1487, 2974, 3349, 5948, 6698, 13396, 25279, 50558, 101116, 292939, 585878, 1171756, 4979963, 9959926, 19919852]

約数ペア:

[(1, 19919852), (2, 9959926), (4, 4979963), (17, 1171756), (34, 585878), (68, 292939), (197, 101116), (394, 50558), (788, 25279), (1487, 13396), (2974, 6698), (3349, 5948)]