21252090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{708403}}^1$

素因数の和:708413

約数の個数: 16

約数和(自身を含む): 51005088

約数和(自身を除く): 29752998

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 708403, 1416806, 2125209, 3542015, 4250418, 7084030, 10626045, 21252090]

約数ペア:

[(1, 21252090), (2, 10626045), (3, 7084030), (5, 4250418), (6, 3542015), (10, 2125209), (15, 1416806), (30, 708403)]