21318332

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{4729}}^1$

素因数の和:4770

約数の個数: 36

約数和(自身を含む): 45294480

約数和(自身を除く): 23976148

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 644, 1127, 2254, 4508, 4729, 9458, 18916, 33103, 66206, 108767, 132412, 217534, 231721, 435068, 463442, 761369, 926884, 1522738, 3045476, 5329583, 10659166, 21318332]

約数ペア:

[(1, 21318332), (2, 10659166), (4, 5329583), (7, 3045476), (14, 1522738), (23, 926884), (28, 761369), (46, 463442), (49, 435068), (92, 231721), (98, 217534), (161, 132412), (196, 108767), (322, 66206), (644, 33103), (1127, 18916), (2254, 9458), (4508, 4729)]