21739508

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{33757}}^1$

素因数の和:33791

約数の個数: 24

約数和(自身を含む): 45370752

約数和(自身を除く): 23631244

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 33757, 67514, 135028, 236299, 472598, 776411, 945196, 1552822, 3105644, 5434877, 10869754, 21739508]

約数ペア:

[(1, 21739508), (2, 10869754), (4, 5434877), (7, 3105644), (14, 1552822), (23, 945196), (28, 776411), (46, 472598), (92, 236299), (161, 135028), (322, 67514), (644, 33757)]