20007631

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{433}}^1$

素因数の和:511

約数の個数: 24

約数和(自身を含む): 24935904

約数和(自身を除く): 4928273

約数列:

[1, 7, 23, 41, 49, 161, 287, 433, 943, 1127, 2009, 3031, 6601, 9959, 17753, 21217, 46207, 69713, 124271, 408319, 487991, 869897, 2858233, 20007631]

約数ペア:

[(1, 20007631), (7, 2858233), (23, 869897), (41, 487991), (49, 408319), (161, 124271), (287, 69713), (433, 46207), (943, 21217), (1127, 17753), (2009, 9959), (3031, 6601)]