28176309

素因数分解:

$3^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3467}}^1$

素因数の和:3526

約数の個数: 32

約数和(自身を含む): 48829440

約数和(自身を除く): 20653131

約数列:

[1, 3, 7, 9, 21, 27, 43, 63, 129, 189, 301, 387, 903, 1161, 2709, 3467, 8127, 10401, 24269, 31203, 72807, 93609, 149081, 218421, 447243, 655263, 1043567, 1341729, 3130701, 4025187, 9392103, 28176309]

約数ペア:

[(1, 28176309), (3, 9392103), (7, 4025187), (9, 3130701), (21, 1341729), (27, 1043567), (43, 655263), (63, 447243), (129, 218421), (189, 149081), (301, 93609), (387, 72807), (903, 31203), (1161, 24269), (2709, 10401), (3467, 8127)]