18480411

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^2$

素因数の和:172

約数の個数: 36

約数和(自身を含む): 29477448

約数和(自身を除く): 10997037

約数列:

[1, 3, 9, 17, 43, 51, 53, 129, 153, 159, 387, 477, 731, 901, 2193, 2279, 2703, 2809, 6579, 6837, 8109, 8427, 20511, 25281, 38743, 47753, 116229, 120787, 143259, 348687, 362361, 429777, 1087083, 2053379, 6160137, 18480411]

約数ペア:

[(1, 18480411), (3, 6160137), (9, 2053379), (17, 1087083), (43, 429777), (51, 362361), (53, 348687), (129, 143259), (153, 120787), (159, 116229), (387, 47753), (477, 38743), (731, 25281), (901, 20511), (2193, 8427), (2279, 8109), (2703, 6837), (2809, 6579)]