21027344

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2351}}^1$

素因数の和:2415

約数の個数: 40

約数和(自身を含む): 44913792

約数和(自身を除く): 23886448

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1118, 2236, 2351, 4472, 4702, 8944, 9404, 18808, 30563, 37616, 61126, 101093, 122252, 202186, 244504, 404372, 489008, 808744, 1314209, 1617488, 2628418, 5256836, 10513672, 21027344]

約数ペア:

[(1, 21027344), (2, 10513672), (4, 5256836), (8, 2628418), (13, 1617488), (16, 1314209), (26, 808744), (43, 489008), (52, 404372), (86, 244504), (104, 202186), (172, 122252), (208, 101093), (344, 61126), (559, 37616), (688, 30563), (1118, 18808), (2236, 9404), (2351, 8944), (4472, 4702)]