20993536

素因数分解:

$2^9\times {\mathrm{131}}^1\times {\mathrm{313}}^1$

素因数の和:462

約数の個数: 40

約数和(自身を含む): 42401304

約数和(自身を除く): 21407768

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 131, 256, 262, 313, 512, 524, 626, 1048, 1252, 2096, 2504, 4192, 5008, 8384, 10016, 16768, 20032, 33536, 40064, 41003, 67072, 80128, 82006, 160256, 164012, 328024, 656048, 1312096, 2624192, 5248384, 10496768, 20993536]

約数ペア:

[(1, 20993536), (2, 10496768), (4, 5248384), (8, 2624192), (16, 1312096), (32, 656048), (64, 328024), (128, 164012), (131, 160256), (256, 82006), (262, 80128), (313, 67072), (512, 41003), (524, 40064), (626, 33536), (1048, 20032), (1252, 16768), (2096, 10016), (2504, 8384), (4192, 5008)]