21319165

素因数分解:

$5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:458

約数の個数: 32

約数和(自身を含む): 30873600

約数和(自身を除く): 9554435

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 343, 401, 1085, 1519, 1715, 2005, 2807, 7595, 10633, 12431, 14035, 19649, 53165, 62155, 87017, 98245, 137543, 435085, 609119, 687715, 3045595, 4263833, 21319165]

約数ペア:

[(1, 21319165), (5, 4263833), (7, 3045595), (31, 687715), (35, 609119), (49, 435085), (155, 137543), (217, 98245), (245, 87017), (343, 62155), (401, 53165), (1085, 19649), (1519, 14035), (1715, 12431), (2005, 10633), (2807, 7595)]