19958744

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{191911}}^1$

素因数の和:191930

約数の個数: 16

約数和(自身を含む): 40301520

約数和(自身を除く): 20342776

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 191911, 383822, 767644, 1535288, 2494843, 4989686, 9979372, 19958744]

約数ペア:

[(1, 19958744), (2, 9979372), (4, 4989686), (8, 2494843), (13, 1535288), (26, 767644), (52, 383822), (104, 191911)]