21981772

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{227}}^1\times {\mathrm{563}}^1$

素因数の和:837

約数の個数: 24

約数和(自身を含む): 39606336

約数和(自身を除く): 17624564

約数列:

[1, 2, 4, 43, 86, 172, 227, 454, 563, 908, 1126, 2252, 9761, 19522, 24209, 39044, 48418, 96836, 127801, 255602, 511204, 5495443, 10990886, 21981772]

約数ペア:

[(1, 21981772), (2, 10990886), (4, 5495443), (43, 511204), (86, 255602), (172, 127801), (227, 96836), (454, 48418), (563, 39044), (908, 24209), (1126, 19522), (2252, 9761)]