21997952912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{105759389}}^1$

素因数の和:105759410

約数の個数: 20

約数和(自身を含む): 45899575260

約数和(自身を除く): 23901622348

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 105759389, 211518778, 423037556, 846075112, 1374872057, 1692150224, 2749744114, 5499488228, 10998976456, 21997952912]

約数ペア:

[(1, 21997952912), (2, 10998976456), (4, 5499488228), (8, 2749744114), (13, 1692150224), (16, 1374872057), (26, 846075112), (52, 423037556), (104, 211518778), (208, 105759389)]