8404221

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{227}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 13483008

約数和(自身を除く): 5078787

約数列:

[1, 3, 7, 21, 41, 43, 123, 129, 227, 287, 301, 681, 861, 903, 1589, 1763, 4767, 5289, 9307, 9761, 12341, 27921, 29283, 37023, 65149, 68327, 195447, 204981, 400201, 1200603, 2801407, 8404221]

約数ペア:

[(1, 8404221), (3, 2801407), (7, 1200603), (21, 400201), (41, 204981), (43, 195447), (123, 68327), (129, 65149), (227, 37023), (287, 29283), (301, 27921), (681, 12341), (861, 9761), (903, 9307), (1589, 5289), (1763, 4767)]