21700585

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{4817}}^1$

素因数の和:4892

約数の個数: 16

約数和(自身を含む): 28098576

約数和(自身を除く): 6397991

約数列:

[1, 5, 17, 53, 85, 265, 901, 4505, 4817, 24085, 81889, 255301, 409445, 1276505, 4340117, 21700585]

約数ペア:

[(1, 21700585), (5, 4340117), (17, 1276505), (53, 409445), (85, 255301), (265, 81889), (901, 24085), (4505, 4817)]