258379009

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{349}}^1\times {\mathrm{521}}^1$

素因数の和:913

約数の個数: 24

約数和(自身を含む): 312417000

約数和(自身を除く): 54037991

約数列:

[1, 7, 29, 49, 203, 349, 521, 1421, 2443, 3647, 10121, 15109, 17101, 25529, 70847, 105763, 181829, 495929, 740341, 1272803, 5273041, 8909621, 36911287, 258379009]

約数ペア:

[(1, 258379009), (7, 36911287), (29, 8909621), (49, 5273041), (203, 1272803), (349, 740341), (521, 495929), (1421, 181829), (2443, 105763), (3647, 70847), (10121, 25529), (15109, 17101)]