20443904

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{6143}}^1$

素因数の和:6172

約数の個数: 36

約数和(自身を含む): 43954176

約数和(自身を除く): 23510272

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 832, 1664, 3328, 6143, 12286, 24572, 49144, 79859, 98288, 159718, 196576, 319436, 393152, 638872, 786304, 1277744, 1572608, 2555488, 5110976, 10221952, 20443904]

約数ペア:

[(1, 20443904), (2, 10221952), (4, 5110976), (8, 2555488), (13, 1572608), (16, 1277744), (26, 786304), (32, 638872), (52, 393152), (64, 319436), (104, 196576), (128, 159718), (208, 98288), (256, 79859), (416, 49144), (832, 24572), (1664, 12286), (3328, 6143)]