21087458

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1523}}^1$

素因数の和:1598

約数の個数: 32

約数和(自身を含む): 38624256

約数和(自身を除く): 17536798

約数列:

[1, 2, 7, 14, 23, 43, 46, 86, 161, 301, 322, 602, 989, 1523, 1978, 3046, 6923, 10661, 13846, 21322, 35029, 65489, 70058, 130978, 245203, 458423, 490406, 916846, 1506247, 3012494, 10543729, 21087458]

約数ペア:

[(1, 21087458), (2, 10543729), (7, 3012494), (14, 1506247), (23, 916846), (43, 490406), (46, 458423), (86, 245203), (161, 130978), (301, 70058), (322, 65489), (602, 35029), (989, 21322), (1523, 13846), (1978, 10661), (3046, 6923)]