21132496

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1009}}^1$

素因数の和:1052

約数の個数: 80

約数和(自身を含む): 54103680

約数和(自身を除く): 32971184

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 28, 34, 44, 56, 68, 77, 88, 112, 119, 136, 154, 176, 187, 238, 272, 308, 374, 476, 616, 748, 952, 1009, 1232, 1309, 1496, 1904, 2018, 2618, 2992, 4036, 5236, 7063, 8072, 10472, 11099, 14126, 16144, 17153, 20944, 22198, 28252, 34306, 44396, 56504, 68612, 77693, 88792, 113008, 120071, 137224, 155386, 177584, 188683, 240142, 274448, 310772, 377366, 480284, 621544, 754732, 960568, 1243088, 1320781, 1509464, 1921136, 2641562, 3018928, 5283124, 10566248, 21132496]

約数ペア:

[(1, 21132496), (2, 10566248), (4, 5283124), (7, 3018928), (8, 2641562), (11, 1921136), (14, 1509464), (16, 1320781), (17, 1243088), (22, 960568), (28, 754732), (34, 621544), (44, 480284), (56, 377366), (68, 310772), (77, 274448), (88, 240142), (112, 188683), (119, 177584), (136, 155386), (154, 137224), (176, 120071), (187, 113008), (238, 88792), (272, 77693), (308, 68612), (374, 56504), (476, 44396), (616, 34306), (748, 28252), (952, 22198), (1009, 20944), (1232, 17153), (1309, 16144), (1496, 14126), (1904, 11099), (2018, 10472), (2618, 8072), (2992, 7063), (4036, 5236)]