17740429

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{439}}^1$

素因数の和:720

約数の個数: 16

約数和(自身を含む): 21288960

約数和(自身を除く): 3548531

約数列:

[1, 7, 23, 161, 251, 439, 1757, 3073, 5773, 10097, 40411, 70679, 110189, 771323, 2534347, 17740429]

約数ペア:

[(1, 17740429), (7, 2534347), (23, 771323), (161, 110189), (251, 70679), (439, 40411), (1757, 10097), (3073, 5773)]