21964356

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{647}}^1$

素因数の和:721

約数の個数: 72

約数和(自身を含む): 59439744

約数和(自身を除く): 37475388

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 41, 46, 69, 82, 92, 123, 138, 164, 207, 246, 276, 369, 414, 492, 647, 738, 828, 943, 1294, 1476, 1886, 1941, 2588, 2829, 3772, 3882, 5658, 5823, 7764, 8487, 11316, 11646, 14881, 16974, 23292, 26527, 29762, 33948, 44643, 53054, 59524, 79581, 89286, 106108, 133929, 159162, 178572, 238743, 267858, 318324, 477486, 535716, 610121, 954972, 1220242, 1830363, 2440484, 3660726, 5491089, 7321452, 10982178, 21964356]

約数ペア:

[(1, 21964356), (2, 10982178), (3, 7321452), (4, 5491089), (6, 3660726), (9, 2440484), (12, 1830363), (18, 1220242), (23, 954972), (36, 610121), (41, 535716), (46, 477486), (69, 318324), (82, 267858), (92, 238743), (123, 178572), (138, 159162), (164, 133929), (207, 106108), (246, 89286), (276, 79581), (369, 59524), (414, 53054), (492, 44643), (647, 33948), (738, 29762), (828, 26527), (943, 23292), (1294, 16974), (1476, 14881), (1886, 11646), (1941, 11316), (2588, 8487), (2829, 7764), (3772, 5823), (3882, 5658)]