20211728

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{9643}}^1$

素因数の和:9782

約数の個数: 20

約数和(自身を含む): 39463248

約数和(自身を除く): 19251520

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 9643, 19286, 38572, 77144, 154288, 1263233, 2526466, 5052932, 10105864, 20211728]

約数ペア:

[(1, 20211728), (2, 10105864), (4, 5052932), (8, 2526466), (16, 1263233), (131, 154288), (262, 77144), (524, 38572), (1048, 19286), (2096, 9643)]