20178097772

素因数分解:

$2^2\times 7^1\times {\mathrm{1621}}^1\times {\mathrm{444569}}^1$

素因数の和:446201

約数の個数: 24

約数和(自身を含む): 40381182240

約数和(自身を除く): 20203084468

約数列:

[1, 2, 4, 7, 14, 28, 1621, 3242, 6484, 11347, 22694, 45388, 444569, 889138, 1778276, 3111983, 6223966, 12447932, 720646349, 1441292698, 2882585396, 5044524443, 10089048886, 20178097772]

約数ペア:

[(1, 20178097772), (2, 10089048886), (4, 5044524443), (7, 2882585396), (14, 1441292698), (28, 720646349), (1621, 12447932), (3242, 6223966), (6484, 3111983), (11347, 1778276), (22694, 889138), (45388, 444569)]