21098630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{301409}}^1$

素因数の和:301423

約数の個数: 16

約数和(自身を含む): 43403040

約数和(自身を除く): 22304410

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 301409, 602818, 1507045, 2109863, 3014090, 4219726, 10549315, 21098630]

約数ペア:

[(1, 21098630), (2, 10549315), (5, 4219726), (7, 3014090), (10, 2109863), (14, 1507045), (35, 602818), (70, 301409)]