21603267

素因数分解:

$3^4\times 7^2\times {\mathrm{5443}}^1$

素因数の和:5469

約数の個数: 30

約数和(自身を含む): 37547268

約数和(自身を除く): 15944001

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 5443, 16329, 38101, 48987, 114303, 146961, 266707, 342909, 440883, 800121, 1028727, 2400363, 3086181, 7201089, 21603267]

約数ペア:

[(1, 21603267), (3, 7201089), (7, 3086181), (9, 2400363), (21, 1028727), (27, 800121), (49, 440883), (63, 342909), (81, 266707), (147, 146961), (189, 114303), (441, 48987), (567, 38101), (1323, 16329), (3969, 5443)]