2880021

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{379}}^1$

素因数の和:548

約数の個数: 16

約数和(自身を含む): 4104000

約数和(自身を除く): 1223979

約数列:

[1, 3, 17, 51, 149, 379, 447, 1137, 2533, 6443, 7599, 19329, 56471, 169413, 960007, 2880021]

約数ペア:

[(1, 2880021), (3, 960007), (17, 169413), (51, 56471), (149, 19329), (379, 7599), (447, 6443), (1137, 2533)]