19110889

素因数分解:

$7^1\times {\mathrm{73}}^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 22377600

約数和(自身を除く): 3266711

約数列:

[1, 7, 73, 149, 251, 511, 1043, 1757, 10877, 18323, 37399, 76139, 128261, 261793, 2730127, 19110889]

約数ペア:

[(1, 19110889), (7, 2730127), (73, 261793), (149, 128261), (251, 76139), (511, 37399), (1043, 18323), (1757, 10877)]