21043338

素因数分解:

$2^1\times 3^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:502

約数の個数: 32

約数和(自身を含む): 43001280

約数和(自身を除く): 21957942

約数列:

[1, 2, 3, 6, 89, 157, 178, 251, 267, 314, 471, 502, 534, 753, 942, 1506, 13973, 22339, 27946, 39407, 41919, 44678, 67017, 78814, 83838, 118221, 134034, 236442, 3507223, 7014446, 10521669, 21043338]

約数ペア:

[(1, 21043338), (2, 10521669), (3, 7014446), (6, 3507223), (89, 236442), (157, 134034), (178, 118221), (251, 83838), (267, 78814), (314, 67017), (471, 44678), (502, 41919), (534, 39407), (753, 27946), (942, 22339), (1506, 13973)]