15872857

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 21659904

約数和(自身を除く): 5787047

約数列:

[1, 7, 11, 13, 77, 91, 101, 143, 157, 707, 1001, 1099, 1111, 1313, 1727, 2041, 7777, 9191, 12089, 14287, 14443, 15857, 22451, 101101, 110999, 157157, 174427, 206141, 1220989, 1442987, 2267551, 15872857]

約数ペア:

[(1, 15872857), (7, 2267551), (11, 1442987), (13, 1220989), (77, 206141), (91, 174427), (101, 157157), (143, 110999), (157, 101101), (707, 22451), (1001, 15857), (1099, 14443), (1111, 14287), (1313, 12089), (1727, 9191), (2041, 7777)]