21551453

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{14731}}^1$

素因数の和:14768

約数の個数: 16

約数和(自身を含む): 28285440

約数和(自身を除く): 6733987

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 14731, 103117, 162041, 279889, 1134287, 1959223, 3078779, 21551453]

約数ペア:

[(1, 21551453), (7, 3078779), (11, 1959223), (19, 1134287), (77, 279889), (133, 162041), (209, 103117), (1463, 14731)]