21182679

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{4051}}^1$

素因数の和:4147

約数の個数: 24

約数和(自身を含む): 35398272

約数和(自身を除く): 14215593

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 4051, 5229, 12153, 28357, 36459, 85071, 255213, 336233, 1008699, 2353631, 3026097, 7060893, 21182679]

約数ペア:

[(1, 21182679), (3, 7060893), (7, 3026097), (9, 2353631), (21, 1008699), (63, 336233), (83, 255213), (249, 85071), (581, 36459), (747, 28357), (1743, 12153), (4051, 5229)]