21879776

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{15901}}^1$

素因数の和:15954

約数の個数: 24

約数和(自身を含む): 44080344

約数和(自身を除く): 22200568

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 688, 1376, 15901, 31802, 63604, 127208, 254416, 508832, 683743, 1367486, 2734972, 5469944, 10939888, 21879776]

約数ペア:

[(1, 21879776), (2, 10939888), (4, 5469944), (8, 2734972), (16, 1367486), (32, 683743), (43, 508832), (86, 254416), (172, 127208), (344, 63604), (688, 31802), (1376, 15901)]