21259097536

素因数分解:

$2^6\times {\mathrm{4157}}^1\times {\mathrm{79907}}^1$

素因数の和:84076

約数の個数: 28

約数和(自身を含む): 42196697928

約数和(自身を除く): 20937600392

約数列:

[1, 2, 4, 8, 16, 32, 64, 4157, 8314, 16628, 33256, 66512, 79907, 133024, 159814, 266048, 319628, 639256, 1278512, 2557024, 5114048, 332173399, 664346798, 1328693596, 2657387192, 5314774384, 10629548768, 21259097536]

約数ペア:

[(1, 21259097536), (2, 10629548768), (4, 5314774384), (8, 2657387192), (16, 1328693596), (32, 664346798), (64, 332173399), (4157, 5114048), (8314, 2557024), (16628, 1278512), (33256, 639256), (66512, 319628), (79907, 266048), (133024, 159814)]