19778551

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{2281}}^1$

素因数の和:2346

約数の個数: 16

約数和(自身を含む): 23002560

約数和(自身を除く): 3224009

約数列:

[1, 13, 23, 29, 299, 377, 667, 2281, 8671, 29653, 52463, 66149, 682019, 859937, 1521427, 19778551]

約数ペア:

[(1, 19778551), (13, 1521427), (23, 859937), (29, 682019), (299, 66149), (377, 52463), (667, 29653), (2281, 8671)]