20972416

素因数分解:

$2^7\times {\mathrm{163847}}^1$

素因数の和:163861

約数の個数: 16

約数和(自身を含む): 41781240

約数和(自身を除く): 20808824

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 163847, 327694, 655388, 1310776, 2621552, 5243104, 10486208, 20972416]

約数ペア:

[(1, 20972416), (2, 10486208), (4, 5243104), (8, 2621552), (16, 1310776), (32, 655388), (64, 327694), (128, 163847)]