19438718

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^2\times {\mathrm{199}}^1$

素因数の和:261

約数の個数: 36

約数和(自身を含む): 33708600

約数和(自身を除く): 14269882

約数列:

[1, 2, 13, 17, 26, 34, 169, 199, 221, 289, 338, 398, 442, 578, 2587, 2873, 3383, 3757, 5174, 5746, 6766, 7514, 33631, 43979, 48841, 57511, 67262, 87958, 97682, 115022, 571727, 747643, 1143454, 1495286, 9719359, 19438718]

約数ペア:

[(1, 19438718), (2, 9719359), (13, 1495286), (17, 1143454), (26, 747643), (34, 571727), (169, 115022), (199, 97682), (221, 87958), (289, 67262), (338, 57511), (398, 48841), (442, 43979), (578, 33631), (2587, 7514), (2873, 6766), (3383, 5746), (3757, 5174)]