20903481

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{821}}^1$

素因数の和:894

約数の個数: 32

約数和(自身を含む): 33143040

約数和(自身を除く): 12239559

約数列:

[1, 3, 9, 23, 27, 41, 69, 123, 207, 369, 621, 821, 943, 1107, 2463, 2829, 7389, 8487, 18883, 22167, 25461, 33661, 56649, 100983, 169947, 302949, 509841, 774203, 908847, 2322609, 6967827, 20903481]

約数ペア:

[(1, 20903481), (3, 6967827), (9, 2322609), (23, 908847), (27, 774203), (41, 509841), (69, 302949), (123, 169947), (207, 100983), (369, 56649), (621, 33661), (821, 25461), (943, 22167), (1107, 18883), (2463, 8487), (2829, 7389)]