21492160

素因数分解:

$2^6\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1429}}^1$

素因数の和:1493

約数の個数: 56

約数和(自身を含む): 52303680

約数和(自身を除く): 30811520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 160, 188, 235, 320, 376, 470, 752, 940, 1429, 1504, 1880, 2858, 3008, 3760, 5716, 7145, 7520, 11432, 14290, 15040, 22864, 28580, 45728, 57160, 67163, 91456, 114320, 134326, 228640, 268652, 335815, 457280, 537304, 671630, 1074608, 1343260, 2149216, 2686520, 4298432, 5373040, 10746080, 21492160]

約数ペア:

[(1, 21492160), (2, 10746080), (4, 5373040), (5, 4298432), (8, 2686520), (10, 2149216), (16, 1343260), (20, 1074608), (32, 671630), (40, 537304), (47, 457280), (64, 335815), (80, 268652), (94, 228640), (160, 134326), (188, 114320), (235, 91456), (320, 67163), (376, 57160), (470, 45728), (752, 28580), (940, 22864), (1429, 15040), (1504, 14290), (1880, 11432), (2858, 7520), (3008, 7145), (3760, 5716)]