40491009

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{38453}}^1$

素因数の和:38478

約数の個数: 20

約数和(自身を含む): 65141076

約数和(自身を除く): 24650067

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 38453, 115359, 346077, 499889, 1038231, 1499667, 3114693, 4499001, 13497003, 40491009]

約数ペア:

[(1, 40491009), (3, 13497003), (9, 4499001), (13, 3114693), (27, 1499667), (39, 1038231), (81, 499889), (117, 346077), (351, 115359), (1053, 38453)]