21457664

素因数分解:

$2^8\times {\mathrm{79}}^1\times {\mathrm{1061}}^1$

素因数の和:1156

約数の個数: 36

約数和(自身を含む): 43414560

約数和(自身を除く): 21956896

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 128, 158, 256, 316, 632, 1061, 1264, 2122, 2528, 4244, 5056, 8488, 10112, 16976, 20224, 33952, 67904, 83819, 135808, 167638, 271616, 335276, 670552, 1341104, 2682208, 5364416, 10728832, 21457664]

約数ペア:

[(1, 21457664), (2, 10728832), (4, 5364416), (8, 2682208), (16, 1341104), (32, 670552), (64, 335276), (79, 271616), (128, 167638), (158, 135808), (256, 83819), (316, 67904), (632, 33952), (1061, 20224), (1264, 16976), (2122, 10112), (2528, 8488), (4244, 5056)]