28223507

素因数分解:

${\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:239

約数の個数: 24

約数和(自身を含む): 32729184

約数和(自身を除く): 4505677

約数列:

[1, 13, 23, 53, 137, 169, 299, 689, 1219, 1781, 3151, 3887, 7261, 8957, 15847, 23153, 40963, 94393, 167003, 206011, 532519, 1227109, 2171039, 28223507]

約数ペア:

[(1, 28223507), (13, 2171039), (23, 1227109), (53, 532519), (137, 206011), (169, 167003), (299, 94393), (689, 40963), (1219, 23153), (1781, 15847), (3151, 8957), (3887, 7261)]