19816401

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{2137}}^1$

素因数の和:2432

約数の個数: 16

約数和(自身を含む): 28939968

約数和(自身を除く): 9123567

約数列:

[1, 3, 11, 33, 281, 843, 2137, 3091, 6411, 9273, 23507, 70521, 600497, 1801491, 6605467, 19816401]

約数ペア:

[(1, 19816401), (3, 6605467), (11, 1801491), (33, 600497), (281, 70521), (843, 23507), (2137, 9273), (3091, 6411)]