19838416

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{751}}^1$

素因数の和:899

約数の個数: 40

約数和(自身を含む): 41775104

約数和(自身を除く): 21936688

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 127, 208, 254, 508, 751, 1016, 1502, 1651, 2032, 3004, 3302, 6008, 6604, 9763, 12016, 13208, 19526, 26416, 39052, 78104, 95377, 156208, 190754, 381508, 763016, 1239901, 1526032, 2479802, 4959604, 9919208, 19838416]

約数ペア:

[(1, 19838416), (2, 9919208), (4, 4959604), (8, 2479802), (13, 1526032), (16, 1239901), (26, 763016), (52, 381508), (104, 190754), (127, 156208), (208, 95377), (254, 78104), (508, 39052), (751, 26416), (1016, 19526), (1502, 13208), (1651, 12016), (2032, 9763), (3004, 6604), (3302, 6008)]