261361107

素因数分解:

$3^3\times 7^1\times {\mathrm{83}}^1\times {\mathrm{16661}}^1$

素因数の和:16760

約数の個数: 32

約数和(自身を含む): 447874560

約数和(自身を除く): 186513453

約数列:

[1, 3, 7, 9, 21, 27, 63, 83, 189, 249, 581, 747, 1743, 2241, 5229, 15687, 16661, 49983, 116627, 149949, 349881, 449847, 1049643, 1382863, 3148929, 4148589, 9680041, 12445767, 29040123, 37337301, 87120369, 261361107]

約数ペア:

[(1, 261361107), (3, 87120369), (7, 37337301), (9, 29040123), (21, 12445767), (27, 9680041), (63, 4148589), (83, 3148929), (189, 1382863), (249, 1049643), (581, 449847), (747, 349881), (1743, 149949), (2241, 116627), (5229, 49983), (15687, 16661)]