20931778

素因数分解:

$2^1\times 7^1\times {\mathrm{331}}^1\times {\mathrm{4517}}^1$

素因数の和:4857

約数の個数: 16

約数和(自身を含む): 35999424

約数和(自身を除く): 15067646

約数列:

[1, 2, 7, 14, 331, 662, 2317, 4517, 4634, 9034, 31619, 63238, 1495127, 2990254, 10465889, 20931778]

約数ペア:

[(1, 20931778), (2, 10465889), (7, 2990254), (14, 1495127), (331, 63238), (662, 31619), (2317, 9034), (4517, 4634)]