21290210

素因数分解:

$2^1\times 5^1\times {\mathrm{863}}^1\times {\mathrm{2467}}^1$

素因数の和:3337

約数の個数: 16

約数和(自身を含む): 38382336

約数和(自身を除く): 17092126

約数列:

[1, 2, 5, 10, 863, 1726, 2467, 4315, 4934, 8630, 12335, 24670, 2129021, 4258042, 10645105, 21290210]

約数ペア:

[(1, 21290210), (2, 10645105), (5, 4258042), (10, 2129021), (863, 24670), (1726, 12335), (2467, 8630), (4315, 4934)]