405939009

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1017391}}^1$

素因数の和:1017420

約数の個数: 16

約数和(自身を含む): 651130880

約数和(自身を除く): 245191871

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 1017391, 3052173, 7121737, 19330429, 21365211, 57991287, 135313003, 405939009]

約数ペア:

[(1, 405939009), (3, 135313003), (7, 57991287), (19, 21365211), (21, 19330429), (57, 7121737), (133, 3052173), (399, 1017391)]