21877024

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1223}}^1$

素因数の和:1289

約数の個数: 48

約数和(自身を含む): 47500992

約数和(自身を除く): 25623968

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 86, 104, 172, 208, 344, 416, 559, 688, 1118, 1223, 1376, 2236, 2446, 4472, 4892, 8944, 9784, 15899, 17888, 19568, 31798, 39136, 52589, 63596, 105178, 127192, 210356, 254384, 420712, 508768, 683657, 841424, 1367314, 1682848, 2734628, 5469256, 10938512, 21877024]

約数ペア:

[(1, 21877024), (2, 10938512), (4, 5469256), (8, 2734628), (13, 1682848), (16, 1367314), (26, 841424), (32, 683657), (43, 508768), (52, 420712), (86, 254384), (104, 210356), (172, 127192), (208, 105178), (344, 63596), (416, 52589), (559, 39136), (688, 31798), (1118, 19568), (1223, 17888), (1376, 15899), (2236, 9784), (2446, 8944), (4472, 4892)]