21610828

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{2239}}^1$

素因数の和:2389

約数の個数: 24

約数和(自身を含む): 40140800

約数和(自身を除く): 18529972

約数列:

[1, 2, 4, 19, 38, 76, 127, 254, 508, 2239, 2413, 4478, 4826, 8956, 9652, 42541, 85082, 170164, 284353, 568706, 1137412, 5402707, 10805414, 21610828]

約数ペア:

[(1, 21610828), (2, 10805414), (4, 5402707), (19, 1137412), (38, 568706), (76, 284353), (127, 170164), (254, 85082), (508, 42541), (2239, 9652), (2413, 8956), (4478, 4826)]