20301111

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{641}}^1$

素因数の和:693

約数の個数: 40

約数和(自身を含む): 33558624

約数和(自身を除く): 13257513

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 81, 153, 207, 391, 459, 621, 641, 1173, 1377, 1863, 1923, 3519, 5769, 10557, 10897, 14743, 17307, 31671, 32691, 44229, 51921, 98073, 132687, 250631, 294219, 398061, 751893, 882657, 1194183, 2255679, 6767037, 20301111]

約数ペア:

[(1, 20301111), (3, 6767037), (9, 2255679), (17, 1194183), (23, 882657), (27, 751893), (51, 398061), (69, 294219), (81, 250631), (153, 132687), (207, 98073), (391, 51921), (459, 44229), (621, 32691), (641, 31671), (1173, 17307), (1377, 14743), (1863, 10897), (1923, 10557), (3519, 5769)]