19113328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{2137}}^1$

素因数の和:2201

約数の個数: 40

約数和(自身を含む): 40827248

約数和(自身を除く): 21713920

約数列:

[1, 2, 4, 8, 13, 16, 26, 43, 52, 86, 104, 172, 208, 344, 559, 688, 1118, 2137, 2236, 4274, 4472, 8548, 8944, 17096, 27781, 34192, 55562, 91891, 111124, 183782, 222248, 367564, 444496, 735128, 1194583, 1470256, 2389166, 4778332, 9556664, 19113328]

約数ペア:

[(1, 19113328), (2, 9556664), (4, 4778332), (8, 2389166), (13, 1470256), (16, 1194583), (26, 735128), (43, 444496), (52, 367564), (86, 222248), (104, 183782), (172, 111124), (208, 91891), (344, 55562), (559, 34192), (688, 27781), (1118, 17096), (2137, 8944), (2236, 8548), (4274, 4472)]