18897597

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:490

約数の個数: 32

約数和(自身を含む): 29420160

約数和(自身を除く): 10522563

約数列:

[1, 3, 9, 27, 41, 43, 123, 129, 369, 387, 397, 1107, 1161, 1191, 1763, 3573, 5289, 10719, 15867, 16277, 17071, 47601, 48831, 51213, 146493, 153639, 439479, 460917, 699911, 2099733, 6299199, 18897597]

約数ペア:

[(1, 18897597), (3, 6299199), (9, 2099733), (27, 699911), (41, 460917), (43, 439479), (123, 153639), (129, 146493), (369, 51213), (387, 48831), (397, 47601), (1107, 17071), (1161, 16277), (1191, 15867), (1763, 10719), (3573, 5289)]