21581248

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{25939}}^1$

素因数の和:25964

約数の個数: 28

約数和(自身を含む): 46121320

約数和(自身を除く): 24540072

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 25939, 51878, 103756, 207512, 337207, 415024, 674414, 830048, 1348828, 1660096, 2697656, 5395312, 10790624, 21581248]

約数ペア:

[(1, 21581248), (2, 10790624), (4, 5395312), (8, 2697656), (13, 1660096), (16, 1348828), (26, 830048), (32, 674414), (52, 415024), (64, 337207), (104, 207512), (208, 103756), (416, 51878), (832, 25939)]