1820199801

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1420921}}^1$

素因数の和:1420992

約数の個数: 16

約数和(自身を含む): 2819109248

約数和(自身を除く): 998909447

約数列:

[1, 3, 7, 21, 61, 183, 427, 1281, 1420921, 4262763, 9946447, 29839341, 86676181, 260028543, 606733267, 1820199801]

約数ペア:

[(1, 1820199801), (3, 606733267), (7, 260028543), (21, 86676181), (61, 29839341), (183, 9946447), (427, 4262763), (1281, 1420921)]