18970263

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{5591}}^1$

素因数の和:5639

約数の個数: 24

約数和(自身を含む): 30532320

約数和(自身を除く): 11562057

約数列:

[1, 3, 9, 13, 29, 39, 87, 117, 261, 377, 1131, 3393, 5591, 16773, 50319, 72683, 162139, 218049, 486417, 654147, 1459251, 2107807, 6323421, 18970263]

約数ペア:

[(1, 18970263), (3, 6323421), (9, 2107807), (13, 1459251), (29, 654147), (39, 486417), (87, 218049), (117, 162139), (261, 72683), (377, 50319), (1131, 16773), (3393, 5591)]