21187072

素因数分解:

$2^9\times {\mathrm{41381}}^1$

素因数の和:41399

約数の個数: 20

約数和(自身を含む): 42333786

約数和(自身を除く): 21146714

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 41381, 82762, 165524, 331048, 662096, 1324192, 2648384, 5296768, 10593536, 21187072]

約数ペア:

[(1, 21187072), (2, 10593536), (4, 5296768), (8, 2648384), (16, 1324192), (32, 662096), (64, 331048), (128, 165524), (256, 82762), (512, 41381)]