21173032

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{24281}}^1$

素因数の和:24396

約数の個数: 16

約数和(自身を含む): 40065300

約数和(自身を除く): 18892268

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 24281, 48562, 97124, 194248, 2646629, 5293258, 10586516, 21173032]

約数ペア:

[(1, 21173032), (2, 10586516), (4, 5293258), (8, 2646629), (109, 194248), (218, 97124), (436, 48562), (872, 24281)]