19927028

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{457}}^1\times {\mathrm{991}}^1$

素因数の和:1463

約数の個数: 24

約数和(自身を含む): 38164224

約数和(自身を除く): 18237196

約数列:

[1, 2, 4, 11, 22, 44, 457, 914, 991, 1828, 1982, 3964, 5027, 10054, 10901, 20108, 21802, 43604, 452887, 905774, 1811548, 4981757, 9963514, 19927028]

約数ペア:

[(1, 19927028), (2, 9963514), (4, 4981757), (11, 1811548), (22, 905774), (44, 452887), (457, 43604), (914, 21802), (991, 20108), (1828, 10901), (1982, 10054), (3964, 5027)]