20802068

素因数分解:

$2^2\times 7^2\times {\mathrm{211}}^1\times {\mathrm{503}}^1$

素因数の和:732

約数の個数: 36

約数和(自身を含む): 42632352

約数和(自身を除く): 21830284

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 211, 422, 503, 844, 1006, 1477, 2012, 2954, 3521, 5908, 7042, 10339, 14084, 20678, 24647, 41356, 49294, 98588, 106133, 212266, 424532, 742931, 1485862, 2971724, 5200517, 10401034, 20802068]

約数ペア:

[(1, 20802068), (2, 10401034), (4, 5200517), (7, 2971724), (14, 1485862), (28, 742931), (49, 424532), (98, 212266), (196, 106133), (211, 98588), (422, 49294), (503, 41356), (844, 24647), (1006, 20678), (1477, 14084), (2012, 10339), (2954, 7042), (3521, 5908)]