18732021

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{977}}^1$

素因数の和:1081

約数の個数: 32

約数和(自身を含む): 31546368

約数和(自身を除く): 12814347

約数列:

[1, 3, 7, 11, 21, 33, 77, 83, 231, 249, 581, 913, 977, 1743, 2739, 2931, 6391, 6839, 10747, 19173, 20517, 32241, 75229, 81091, 225687, 243273, 567637, 892001, 1702911, 2676003, 6244007, 18732021]

約数ペア:

[(1, 18732021), (3, 6244007), (7, 2676003), (11, 1702911), (21, 892001), (33, 567637), (77, 243273), (83, 225687), (231, 81091), (249, 75229), (581, 32241), (913, 20517), (977, 19173), (1743, 10747), (2739, 6839), (2931, 6391)]