215344

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{313}}^1$

素因数の和:364

約数の個数: 20

約数和(自身を含む): 428296

約数和(自身を除く): 212952

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 313, 344, 626, 688, 1252, 2504, 5008, 13459, 26918, 53836, 107672, 215344]

約数ペア:

[(1, 215344), (2, 107672), (4, 53836), (8, 26918), (16, 13459), (43, 5008), (86, 2504), (172, 1252), (313, 688), (344, 626)]