251017263

素因数分解:

$3^2\times 7^1\times {\mathrm{1861}}^1\times {\mathrm{2141}}^1$

素因数の和:4015

約数の個数: 24

約数和(自身を含む): 414794016

約数和(自身を除く): 163776753

約数列:

[1, 3, 7, 9, 21, 63, 1861, 2141, 5583, 6423, 13027, 14987, 16749, 19269, 39081, 44961, 117243, 134883, 3984401, 11953203, 27890807, 35859609, 83672421, 251017263]

約数ペア:

[(1, 251017263), (3, 83672421), (7, 35859609), (9, 27890807), (21, 11953203), (63, 3984401), (1861, 134883), (2141, 117243), (5583, 44961), (6423, 39081), (13027, 19269), (14987, 16749)]