20934537

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{157}}^1\times {\mathrm{263}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 30533184

約数和(自身を除く): 9598647

約数列:

[1, 3, 13, 39, 157, 169, 263, 471, 507, 789, 2041, 3419, 6123, 10257, 26533, 41291, 44447, 79599, 123873, 133341, 536783, 1610349, 6978179, 20934537]

約数ペア:

[(1, 20934537), (3, 6978179), (13, 1610349), (39, 536783), (157, 133341), (169, 123873), (263, 79599), (471, 44447), (507, 41291), (789, 26533), (2041, 10257), (3419, 6123)]