18673696

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{331}}^1$

素因数の和:425

約数の個数: 48

約数和(自身を含む): 38652768

約数和(自身を除く): 19979072

約数列:

[1, 2, 4, 8, 16, 32, 41, 43, 82, 86, 164, 172, 328, 331, 344, 656, 662, 688, 1312, 1324, 1376, 1763, 2648, 3526, 5296, 7052, 10592, 13571, 14104, 14233, 27142, 28208, 28466, 54284, 56416, 56932, 108568, 113864, 217136, 227728, 434272, 455456, 583553, 1167106, 2334212, 4668424, 9336848, 18673696]

約数ペア:

[(1, 18673696), (2, 9336848), (4, 4668424), (8, 2334212), (16, 1167106), (32, 583553), (41, 455456), (43, 434272), (82, 227728), (86, 217136), (164, 113864), (172, 108568), (328, 56932), (331, 56416), (344, 54284), (656, 28466), (662, 28208), (688, 27142), (1312, 14233), (1324, 14104), (1376, 13571), (1763, 10592), (2648, 7052), (3526, 5296)]