19796721

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2411}}^1$

素因数の和:2461

約数の個数: 32

約数和(自身を含む): 33343488

約数和(自身を除く): 13546767

約数列:

[1, 3, 7, 17, 21, 23, 51, 69, 119, 161, 357, 391, 483, 1173, 2411, 2737, 7233, 8211, 16877, 40987, 50631, 55453, 122961, 166359, 286909, 388171, 860727, 942701, 1164513, 2828103, 6598907, 19796721]

約数ペア:

[(1, 19796721), (3, 6598907), (7, 2828103), (17, 1164513), (21, 942701), (23, 860727), (51, 388171), (69, 286909), (119, 166359), (161, 122961), (357, 55453), (391, 50631), (483, 40987), (1173, 16877), (2411, 8211), (2737, 7233)]