18976321

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{1381}}^1$

素因数の和:1552

約数の個数: 16

約数和(自身を含む): 23527168

約数和(自身を除く): 4550847

約数列:

[1, 7, 13, 91, 151, 1057, 1381, 1963, 9667, 13741, 17953, 125671, 208531, 1459717, 2710903, 18976321]

約数ペア:

[(1, 18976321), (7, 2710903), (13, 1459717), (91, 208531), (151, 125671), (1057, 17953), (1381, 13741), (1963, 9667)]