18418743

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9431}}^1$

素因数の和:9475

約数の個数: 24

約数和(自身を含む): 31389696

約数和(自身を除く): 12970953

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 9431, 28293, 66017, 84879, 198051, 292361, 594153, 877083, 2046527, 2631249, 6139581, 18418743]

約数ペア:

[(1, 18418743), (3, 6139581), (7, 2631249), (9, 2046527), (21, 877083), (31, 594153), (63, 292361), (93, 198051), (217, 84879), (279, 66017), (651, 28293), (1953, 9431)]