21630190

素因数分解:

$2^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{12503}}^1$

素因数の和:12683

約数の個数: 16

約数和(自身を含む): 39162528

約数和(自身を除く): 17532338

約数列:

[1, 2, 5, 10, 173, 346, 865, 1730, 12503, 25006, 62515, 125030, 2163019, 4326038, 10815095, 21630190]

約数ペア:

[(1, 21630190), (2, 10815095), (5, 4326038), (10, 2163019), (173, 125030), (346, 62515), (865, 25006), (1730, 12503)]