21407224

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{140837}}^1$

素因数の和:140862

約数の個数: 16

約数和(自身を含む): 42251400

約数和(自身を除く): 20844176

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 140837, 281674, 563348, 1126696, 2675903, 5351806, 10703612, 21407224]

約数ペア:

[(1, 21407224), (2, 10703612), (4, 5351806), (8, 2675903), (19, 1126696), (38, 563348), (76, 281674), (152, 140837)]