21091210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{301303}}^1$

素因数の和:301317

約数の個数: 16

約数和(自身を含む): 43387776

約数和(自身を除く): 22296566

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 301303, 602606, 1506515, 2109121, 3013030, 4218242, 10545605, 21091210]

約数ペア:

[(1, 21091210), (2, 10545605), (5, 4218242), (7, 3013030), (10, 2109121), (14, 1506515), (35, 602606), (70, 301303)]