212547447

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{28351}}^1$

素因数の和:28388

約数の個数: 36

約数和(自身を含む): 378158976

約数和(自身を除く): 165611529

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 357, 441, 833, 1071, 2499, 7497, 28351, 85053, 198457, 255159, 481967, 595371, 1389199, 1445901, 1786113, 3373769, 4167597, 4337703, 10121307, 12502791, 23616383, 30363921, 70849149, 212547447]

約数ペア:

[(1, 212547447), (3, 70849149), (7, 30363921), (9, 23616383), (17, 12502791), (21, 10121307), (49, 4337703), (51, 4167597), (63, 3373769), (119, 1786113), (147, 1445901), (153, 1389199), (357, 595371), (441, 481967), (833, 255159), (1071, 198457), (2499, 85053), (7497, 28351)]