20569136

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4271}}^1$

素因数の和:4329

約数の個数: 40

約数和(自身を含む): 46616064

約数和(自身を除く): 26046928

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 4271, 4816, 8542, 17084, 29897, 34168, 59794, 68336, 119588, 183653, 239176, 367306, 478352, 734612, 1285571, 1469224, 2571142, 2938448, 5142284, 10284568, 20569136]

約数ペア:

[(1, 20569136), (2, 10284568), (4, 5142284), (7, 2938448), (8, 2571142), (14, 1469224), (16, 1285571), (28, 734612), (43, 478352), (56, 367306), (86, 239176), (112, 183653), (172, 119588), (301, 68336), (344, 59794), (602, 34168), (688, 29897), (1204, 17084), (2408, 8542), (4271, 4816)]