1820021259

素因数分解:

$3^1\times 7^2\times {\mathrm{2741}}^1\times {\mathrm{4517}}^1$

素因数の和:7275

約数の個数: 24

約数和(自身を含む): 2824545168

約数和(自身を除く): 1004523909

約数列:

[1, 3, 7, 21, 49, 147, 2741, 4517, 8223, 13551, 19187, 31619, 57561, 94857, 134309, 221333, 402927, 663999, 12381097, 37143291, 86667679, 260003037, 606673753, 1820021259]

約数ペア:

[(1, 1820021259), (3, 606673753), (7, 260003037), (21, 86667679), (49, 37143291), (147, 12381097), (2741, 663999), (4517, 402927), (8223, 221333), (13551, 134309), (19187, 94857), (31619, 57561)]