20302919

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^2\times {\mathrm{101}}^1$

素因数の和:215

約数の個数: 24

約数和(自身を含む): 25783968

約数和(自身を除く): 5481049

約数列:

[1, 7, 13, 47, 91, 101, 329, 611, 707, 1313, 2209, 4277, 4747, 9191, 15463, 28717, 33229, 61711, 201019, 223109, 431977, 1561763, 2900417, 20302919]

約数ペア:

[(1, 20302919), (7, 2900417), (13, 1561763), (47, 431977), (91, 223109), (101, 201019), (329, 61711), (611, 33229), (707, 28717), (1313, 15463), (2209, 9191), (4277, 4747)]