19439889

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{233}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 31000320

約数和(自身を除く): 11560431

約数列:

[1, 3, 7, 21, 29, 87, 137, 203, 233, 411, 609, 699, 959, 1631, 2877, 3973, 4893, 6757, 11919, 20271, 27811, 31921, 47299, 83433, 95763, 141897, 223447, 670341, 925709, 2777127, 6479963, 19439889]

約数ペア:

[(1, 19439889), (3, 6479963), (7, 2777127), (21, 925709), (29, 670341), (87, 223447), (137, 141897), (203, 95763), (233, 83433), (411, 47299), (609, 31921), (699, 27811), (959, 20271), (1631, 11919), (2877, 6757), (3973, 4893)]