28513233

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{337}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 50618880

約数和(自身を除く): 22105647

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 79, 119, 153, 237, 337, 357, 553, 711, 1011, 1071, 1343, 1659, 2359, 3033, 4029, 4977, 5729, 7077, 9401, 12087, 17187, 21231, 26623, 28203, 40103, 51561, 79869, 84609, 120309, 186361, 239607, 360927, 452591, 559083, 1357773, 1677249, 3168137, 4073319, 9504411, 28513233]

約数ペア:

[(1, 28513233), (3, 9504411), (7, 4073319), (9, 3168137), (17, 1677249), (21, 1357773), (51, 559083), (63, 452591), (79, 360927), (119, 239607), (153, 186361), (237, 120309), (337, 84609), (357, 79869), (553, 51561), (711, 40103), (1011, 28203), (1071, 26623), (1343, 21231), (1659, 17187), (2359, 12087), (3033, 9401), (4029, 7077), (4977, 5729)]