21958874

素因数分解:

$2^1\times 7^1\times {\mathrm{787}}^1\times {\mathrm{1993}}^1$

素因数の和:2789

約数の個数: 16

約数和(自身を含む): 37710528

約数和(自身を除く): 15751654

約数列:

[1, 2, 7, 14, 787, 1574, 1993, 3986, 5509, 11018, 13951, 27902, 1568491, 3136982, 10979437, 21958874]

約数ペア:

[(1, 21958874), (2, 10979437), (7, 3136982), (14, 1568491), (787, 27902), (1574, 13951), (1993, 11018), (3986, 5509)]