21193299

素因数分解:

$3^3\times {\mathrm{241}}^1\times {\mathrm{3257}}^1$

素因数の和:3507

約数の個数: 16

約数和(自身を含む): 31537440

約数和(自身を除く): 10344141

約数列:

[1, 3, 9, 27, 241, 723, 2169, 3257, 6507, 9771, 29313, 87939, 784937, 2354811, 7064433, 21193299]

約数ペア:

[(1, 21193299), (3, 7064433), (9, 2354811), (27, 784937), (241, 87939), (723, 29313), (2169, 9771), (3257, 6507)]