19899884

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{911}}^1$

素因数の和:1085

約数の個数: 24

約数和(自身を含む): 35954688

約数和(自身を除く): 16054804

約数列:

[1, 2, 4, 43, 86, 127, 172, 254, 508, 911, 1822, 3644, 5461, 10922, 21844, 39173, 78346, 115697, 156692, 231394, 462788, 4974971, 9949942, 19899884]

約数ペア:

[(1, 19899884), (2, 9949942), (4, 4974971), (43, 462788), (86, 231394), (127, 156692), (172, 115697), (254, 78346), (508, 39173), (911, 21844), (1822, 10922), (3644, 5461)]