405242013

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{20849}}^1$

素因数の和:20913

約数の個数: 32

約数和(自身を含む): 640512000

約数和(自身を除く): 235269987

約数列:

[1, 3, 11, 19, 31, 33, 57, 93, 209, 341, 589, 627, 1023, 1767, 6479, 19437, 20849, 62547, 229339, 396131, 646319, 688017, 1188393, 1938957, 4357441, 7109509, 12280061, 13072323, 21328527, 36840183, 135080671, 405242013]

約数ペア:

[(1, 405242013), (3, 135080671), (11, 36840183), (19, 21328527), (31, 13072323), (33, 12280061), (57, 7109509), (93, 4357441), (209, 1938957), (341, 1188393), (589, 688017), (627, 646319), (1023, 396131), (1767, 229339), (6479, 62547), (19437, 20849)]