20784765

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{313}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 35268480

約数和(自身を除く): 14483715

約数列:

[1, 3, 5, 15, 19, 57, 95, 233, 285, 313, 699, 939, 1165, 1565, 3495, 4427, 4695, 5947, 13281, 17841, 22135, 29735, 66405, 72929, 89205, 218787, 364645, 1093935, 1385651, 4156953, 6928255, 20784765]

約数ペア:

[(1, 20784765), (3, 6928255), (5, 4156953), (15, 1385651), (19, 1093935), (57, 364645), (95, 218787), (233, 89205), (285, 72929), (313, 66405), (699, 29735), (939, 22135), (1165, 17841), (1565, 13281), (3495, 5947), (4427, 4695)]