20961944

素因数分解:

$2^3\times {\mathrm{101}}^1\times {\mathrm{25943}}^1$

素因数の和:26050

約数の個数: 16

約数和(自身を含む): 39694320

約数和(自身を除く): 18732376

約数列:

[1, 2, 4, 8, 101, 202, 404, 808, 25943, 51886, 103772, 207544, 2620243, 5240486, 10480972, 20961944]

約数ペア:

[(1, 20961944), (2, 10480972), (4, 5240486), (8, 2620243), (101, 207544), (202, 103772), (404, 51886), (808, 25943)]