21043072

素因数分解:

$2^7\times {\mathrm{79}}^1\times {\mathrm{2081}}^1$

素因数の和:2174

約数の個数: 32

約数和(自身を含む): 42472800

約数和(自身を除く): 21429728

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 128, 158, 316, 632, 1264, 2081, 2528, 4162, 5056, 8324, 10112, 16648, 33296, 66592, 133184, 164399, 266368, 328798, 657596, 1315192, 2630384, 5260768, 10521536, 21043072]

約数ペア:

[(1, 21043072), (2, 10521536), (4, 5260768), (8, 2630384), (16, 1315192), (32, 657596), (64, 328798), (79, 266368), (128, 164399), (158, 133184), (316, 66592), (632, 33296), (1264, 16648), (2081, 10112), (2528, 8324), (4162, 5056)]