21145744

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{15923}}^1$

素因数の和:16014

約数の個数: 20

約数和(自身を含む): 41466096

約数和(自身を除く): 20320352

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 15923, 31846, 63692, 127384, 254768, 1321609, 2643218, 5286436, 10572872, 21145744]

約数ペア:

[(1, 21145744), (2, 10572872), (4, 5286436), (8, 2643218), (16, 1321609), (83, 254768), (166, 127384), (332, 63692), (664, 31846), (1328, 15923)]