20139308

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^2\times {\mathrm{389}}^1$

素因数の和:486

約数の個数: 36

約数和(自身を含む): 41343120

約数和(自身を除く): 21203812

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 389, 602, 778, 1204, 1556, 1849, 2723, 3698, 5446, 7396, 10892, 12943, 16727, 25886, 33454, 51772, 66908, 117089, 234178, 468356, 719261, 1438522, 2877044, 5034827, 10069654, 20139308]

約数ペア:

[(1, 20139308), (2, 10069654), (4, 5034827), (7, 2877044), (14, 1438522), (28, 719261), (43, 468356), (86, 234178), (172, 117089), (301, 66908), (389, 51772), (602, 33454), (778, 25886), (1204, 16727), (1556, 12943), (1849, 10892), (2723, 7396), (3698, 5446)]