21918172

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{12539}}^1$

素因数の和:12585

約数の個数: 24

約数和(自身を含む): 42134400

約数和(自身を除く): 20216228

約数列:

[1, 2, 4, 19, 23, 38, 46, 76, 92, 437, 874, 1748, 12539, 25078, 50156, 238241, 288397, 476482, 576794, 952964, 1153588, 5479543, 10959086, 21918172]

約数ペア:

[(1, 21918172), (2, 10959086), (4, 5479543), (19, 1153588), (23, 952964), (38, 576794), (46, 476482), (76, 288397), (92, 238241), (437, 50156), (874, 25078), (1748, 12539)]