18783947

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1367}}^1$

素因数の和:1538

約数の個数: 16

約数和(自身を含む): 23288832

約数和(自身を除く): 4504885

約数列:

[1, 7, 13, 91, 151, 1057, 1367, 1963, 9569, 13741, 17771, 124397, 206417, 1444919, 2683421, 18783947]

約数ペア:

[(1, 18783947), (7, 2683421), (13, 1444919), (91, 206417), (151, 124397), (1057, 17771), (1367, 13741), (1963, 9569)]