21288777

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{18149}}^1$

素因数の和:18192

約数の個数: 16

約数和(自身を含む): 31363200

約数和(自身を除く): 10074423

約数列:

[1, 3, 17, 23, 51, 69, 391, 1173, 18149, 54447, 308533, 417427, 925599, 1252281, 7096259, 21288777]

約数ペア:

[(1, 21288777), (3, 7096259), (17, 1252281), (23, 925599), (51, 417427), (69, 308533), (391, 54447), (1173, 18149)]