21089928

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{51691}}^1$

素因数の和:51717

約数の個数: 32

約数和(自身を含む): 55827360

約数和(自身を除く): 34737432

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408, 51691, 103382, 155073, 206764, 310146, 413528, 620292, 878747, 1240584, 1757494, 2636241, 3514988, 5272482, 7029976, 10544964, 21089928]

約数ペア:

[(1, 21089928), (2, 10544964), (3, 7029976), (4, 5272482), (6, 3514988), (8, 2636241), (12, 1757494), (17, 1240584), (24, 878747), (34, 620292), (51, 413528), (68, 310146), (102, 206764), (136, 155073), (204, 103382), (408, 51691)]