21119210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{301703}}^1$

素因数の和:301717

約数の個数: 16

約数和(自身を含む): 43445376

約数和(自身を除く): 22326166

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 301703, 603406, 1508515, 2111921, 3017030, 4223842, 10559605, 21119210]

約数ペア:

[(1, 21119210), (2, 10559605), (5, 4223842), (7, 3017030), (10, 2111921), (14, 1508515), (35, 603406), (70, 301703)]