213528755

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 312035328

約数和(自身を除く): 98506573

約数列:

[1, 5, 11, 17, 43, 47, 55, 85, 113, 187, 215, 235, 473, 517, 565, 731, 799, 935, 1243, 1921, 2021, 2365, 2585, 3655, 3995, 4859, 5311, 6215, 8041, 8789, 9605, 10105, 21131, 22231, 24295, 26555, 34357, 40205, 43945, 53449, 58421, 82603, 90287, 105655, 111155, 171785, 228373, 267245, 292105, 377927, 413015, 451435, 908633, 993157, 1141865, 1889635, 2512103, 3882341, 4543165, 4965785, 12560515, 19411705, 42705751, 213528755]

約数ペア:

[(1, 213528755), (5, 42705751), (11, 19411705), (17, 12560515), (43, 4965785), (47, 4543165), (55, 3882341), (85, 2512103), (113, 1889635), (187, 1141865), (215, 993157), (235, 908633), (473, 451435), (517, 413015), (565, 377927), (731, 292105), (799, 267245), (935, 228373), (1243, 171785), (1921, 111155), (2021, 105655), (2365, 90287), (2585, 82603), (3655, 58421), (3995, 53449), (4859, 43945), (5311, 40205), (6215, 34357), (8041, 26555), (8789, 24295), (9605, 22231), (10105, 21131)]