19809524

素因数分解:

$2^2\times 7^2\times {\mathrm{211}}^1\times {\mathrm{479}}^1$

素因数の和:708

約数の個数: 36

約数和(自身を含む): 40602240

約数和(自身を除く): 20792716

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 211, 422, 479, 844, 958, 1477, 1916, 2954, 3353, 5908, 6706, 10339, 13412, 20678, 23471, 41356, 46942, 93884, 101069, 202138, 404276, 707483, 1414966, 2829932, 4952381, 9904762, 19809524]

約数ペア:

[(1, 19809524), (2, 9904762), (4, 4952381), (7, 2829932), (14, 1414966), (28, 707483), (49, 404276), (98, 202138), (196, 101069), (211, 93884), (422, 46942), (479, 41356), (844, 23471), (958, 20678), (1477, 13412), (1916, 10339), (2954, 6706), (3353, 5908)]