20919035

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{641}}^1$

素因数の和:814

約数の個数: 16

約数和(自身を含む): 25792992

約数和(自身を除く): 4873957

約数列:

[1, 5, 61, 107, 305, 535, 641, 3205, 6527, 32635, 39101, 68587, 195505, 342935, 4183807, 20919035]

約数ペア:

[(1, 20919035), (5, 4183807), (61, 342935), (107, 195505), (305, 68587), (535, 39101), (641, 32635), (3205, 6527)]