20661531

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1063}}^1$

素因数の和:1127

約数の個数: 32

約数和(自身を含む): 32686080

約数和(自身を除く): 12024549

約数列:

[1, 3, 11, 19, 31, 33, 57, 93, 209, 341, 589, 627, 1023, 1063, 1767, 3189, 6479, 11693, 19437, 20197, 32953, 35079, 60591, 98859, 222167, 362483, 626107, 666501, 1087449, 1878321, 6887177, 20661531]

約数ペア:

[(1, 20661531), (3, 6887177), (11, 1878321), (19, 1087449), (31, 666501), (33, 626107), (57, 362483), (93, 222167), (209, 98859), (341, 60591), (589, 35079), (627, 32953), (1023, 20197), (1063, 19437), (1767, 11693), (3189, 6479)]