21129448

素因数分解:

$2^3\times {\mathrm{1303}}^1\times {\mathrm{2027}}^1$

素因数の和:3336

約数の個数: 16

約数和(自身を含む): 39667680

約数和(自身を除く): 18538232

約数列:

[1, 2, 4, 8, 1303, 2027, 2606, 4054, 5212, 8108, 10424, 16216, 2641181, 5282362, 10564724, 21129448]

約数ペア:

[(1, 21129448), (2, 10564724), (4, 5282362), (8, 2641181), (1303, 16216), (2027, 10424), (2606, 8108), (4054, 5212)]