20284873

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 25280640

約数和(自身を除く): 4995767

約数列:

[1, 7, 23, 41, 49, 161, 287, 439, 943, 1127, 2009, 3073, 6601, 10097, 17999, 21511, 46207, 70679, 125993, 413977, 494753, 881951, 2897839, 20284873]

約数ペア:

[(1, 20284873), (7, 2897839), (23, 881951), (41, 494753), (49, 413977), (161, 125993), (287, 70679), (439, 46207), (943, 21511), (1127, 17999), (2009, 10097), (3073, 6601)]