21492401

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{3049}}^1$

素因数の和:3128

約数の個数: 16

約数和(自身を含む): 26352000

約数和(自身を除く): 4859599

約数列:

[1, 7, 19, 53, 133, 371, 1007, 3049, 7049, 21343, 57931, 161597, 405517, 1131179, 3070343, 21492401]

約数ペア:

[(1, 21492401), (7, 3070343), (19, 1131179), (53, 405517), (133, 161597), (371, 57931), (1007, 21343), (3049, 7049)]