20904928

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{5399}}^1$

素因数の和:5431

約数の個数: 36

約数和(自身を含む): 45246600

約数和(自身を除く): 24341672

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 121, 176, 242, 352, 484, 968, 1936, 3872, 5399, 10798, 21596, 43192, 59389, 86384, 118778, 172768, 237556, 475112, 653279, 950224, 1306558, 1900448, 2613116, 5226232, 10452464, 20904928]

約数ペア:

[(1, 20904928), (2, 10452464), (4, 5226232), (8, 2613116), (11, 1900448), (16, 1306558), (22, 950224), (32, 653279), (44, 475112), (88, 237556), (121, 172768), (176, 118778), (242, 86384), (352, 59389), (484, 43192), (968, 21596), (1936, 10798), (3872, 5399)]