1899804557

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{661}}^1$

素因数の和:909

約数の個数: 32

約数和(自身を含む): 2269569024

約数和(自身を除く): 369764467

約数列:

[1, 7, 53, 61, 127, 371, 427, 661, 889, 3233, 4627, 6731, 7747, 22631, 35033, 40321, 47117, 54229, 83947, 245231, 282247, 410591, 587629, 2137013, 2874137, 4449191, 5120767, 14959091, 31144337, 35845369, 271400651, 1899804557]

約数ペア:

[(1, 1899804557), (7, 271400651), (53, 35845369), (61, 31144337), (127, 14959091), (371, 5120767), (427, 4449191), (661, 2874137), (889, 2137013), (3233, 587629), (4627, 410591), (6731, 282247), (7747, 245231), (22631, 83947), (35033, 54229), (40321, 47117)]