19428994

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{389}}^1$

素因数の和:534

約数の個数: 32

約数和(自身を含む): 33611760

約数和(自身を除く): 14182766

約数列:

[1, 2, 13, 17, 26, 34, 113, 221, 226, 389, 442, 778, 1469, 1921, 2938, 3842, 5057, 6613, 10114, 13226, 24973, 43957, 49946, 85969, 87914, 171938, 571441, 747269, 1142882, 1494538, 9714497, 19428994]

約数ペア:

[(1, 19428994), (2, 9714497), (13, 1494538), (17, 1142882), (26, 747269), (34, 571441), (113, 171938), (221, 87914), (226, 85969), (389, 49946), (442, 43957), (778, 24973), (1469, 13226), (1921, 10114), (2938, 6613), (3842, 5057)]