520023721

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{2939}}^1$

素因数の和:3133

約数の個数: 24

約数和(自身を含む): 635463360

約数和(自身を除く): 115439639

約数列:

[1, 7, 23, 49, 157, 161, 1099, 1127, 2939, 3611, 7693, 20573, 25277, 67597, 144011, 176939, 461423, 473179, 3229961, 3312253, 10612729, 22609727, 74289103, 520023721]

約数ペア:

[(1, 520023721), (7, 74289103), (23, 22609727), (49, 10612729), (157, 3312253), (161, 3229961), (1099, 473179), (1127, 461423), (2939, 176939), (3611, 144011), (7693, 67597), (20573, 25277)]